NP-MRD: Showing NP-Card for methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate (NP0234745)

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Record Information

Version

2.0

Created at

2022-09-06 16:58:28 UTC

Updated at

2022-09-06 16:58:29 UTC

NP-MRD ID

NP0234745

Secondary Accession Numbers

None

Natural Product Identification

Common Name

methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate

Description

Methyl (1R,12R,19R)-5-hydroxy-12-[(1S)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]Nonadeca-2(7),3,5,9-tetraene-10-carboxylate belongs to the class of organic compounds known as aspidospermatan-type alkaloids. These are tryptophan-derived alkaloids that are derived from the fusion of tryptamine and a terpene unit (generally either 9 or 10 carbons). Aspidospermine and aspidospermidine (along with tabersonine) are the archetypical members of the Aspidosperma alkaloids. Based on a literature review very few articles have been published on methyl (1R,12R,19R)-5-hydroxy-12-[(1S)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]Nonadeca-2(7),3,5,9-tetraene-10-carboxylate.

Structure

MOL SDF PDB SMILES InChI


  Mrv1652309062218582D          

 27 31  0  0  1  0            999 V2000
    2.0785    5.7235    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.9486    4.9088    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.5892    4.3890    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.3597    4.6838    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.4593    3.5743    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.0999    3.0544    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.9149    3.1826    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    4.2886    2.4471    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.0853    2.2327    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.2980    1.4356    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    6.0946    1.2213    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    4.7140    0.8529    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.9173    1.0673    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.7047    1.8644    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.9700    2.2397    0.0000 C   0  0  1  0  0  0  0  0  0  0  0  0
    3.4885    1.5980    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.0384    0.9066    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.0695    1.1301    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    1.2990    0.8353    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.6584    1.3552    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.7883    2.1699    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.5589    2.4647    0.0000 C   0  0  1  0  0  0  0  0  0  0  0  0
    0.9183    2.9846    0.0000 C   0  0  2  0  0  0  0  0  0  0  0  0
    1.0482    3.7993    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.1477    2.6897    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.6888    3.2794    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.1995    1.9448    0.0000 C   0  0  1  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  2  3  1  0  0  0  0
  3  4  2  0  0  0  0
  3  5  1  0  0  0  0
  5  6  2  0  0  0  0
  6  7  1  0  0  0  0
  7  8  1  0  0  0  0
  8  9  2  0  0  0  0
  9 10  1  0  0  0  0
 10 11  1  0  0  0  0
 10 12  2  0  0  0  0
 12 13  1  0  0  0  0
 13 14  2  0  0  0  0
  8 14  1  0  0  0  0
 15 14  1  6  0  0  0
  6 15  1  0  0  0  0
 15 16  1  0  0  0  0
 16 17  1  0  0  0  0
 17 18  1  0  0  0  0
 18 19  1  0  0  0  0
 19 20  1  0  0  0  0
 20 21  1  0  0  0  0
 21 22  1  0  0  0  0
 22 23  1  6  0  0  0
 23 24  1  0  0  0  0
 23 25  1  1  0  0  0
 22 26  1  0  0  0  0
  5 26  1  0  0  0  0
 22 27  1  0  0  0  0
 27 18  1  1  0  0  0
 15 27  1  0  0  0  0
M  END


  Mrv1652309062218582D          

 27 31  0  0  1  0            999 V2000
    2.0785    5.7235    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.9486    4.9088    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.5892    4.3890    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.3597    4.6838    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    2.4593    3.5743    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.0999    3.0544    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.9149    3.1826    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    4.2886    2.4471    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.0853    2.2327    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    5.2980    1.4356    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    6.0946    1.2213    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    4.7140    0.8529    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.9173    1.0673    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.7047    1.8644    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.9700    2.2397    0.0000 C   0  0  1  0  0  0  0  0  0  0  0  0
    3.4885    1.5980    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    3.0384    0.9066    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.0695    1.1301    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
    1.2990    0.8353    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.6584    1.3552    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.7883    2.1699    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    1.5589    2.4647    0.0000 C   0  0  1  0  0  0  0  0  0  0  0  0
    0.9183    2.9846    0.0000 C   0  0  2  0  0  0  0  0  0  0  0  0
    1.0482    3.7993    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.1477    2.6897    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    1.6888    3.2794    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.1995    1.9448    0.0000 C   0  0  1  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  2  3  1  0  0  0  0
  3  4  2  0  0  0  0
  3  5  1  0  0  0  0
  5  6  2  0  0  0  0
  6  7  1  0  0  0  0
  7  8  1  0  0  0  0
  8  9  2  0  0  0  0
  9 10  1  0  0  0  0
 10 11  1  0  0  0  0
 10 12  2  0  0  0  0
 12 13  1  0  0  0  0
 13 14  2  0  0  0  0
  8 14  1  0  0  0  0
 15 14  1  6  0  0  0
  6 15  1  0  0  0  0
 15 16  1  0  0  0  0
 16 17  1  0  0  0  0
 17 18  1  0  0  0  0
 18 19  1  0  0  0  0
 19 20  1  0  0  0  0
 20 21  1  0  0  0  0
 21 22  1  0  0  0  0
 22 23  1  6  0  0  0
 23 24  1  0  0  0  0
 23 25  1  1  0  0  0
 22 26  1  0  0  0  0
  5 26  1  0  0  0  0
 22 27  1  0  0  0  0
 27 18  1  1  0  0  0
 15 27  1  0  0  0  0
M  END
> <DATABASE_ID>
NP0234745

> <DATABASE_NAME>
NP-MRD

> <SMILES>
COC(=O)C1=C2NC3=CC(O)=CC=C3[C@@]22CCN3CCC[C@](C1)([C@H](C)O)[C@@H]23

> <INCHI_IDENTIFIER>
InChI=1S/C21H26N2O4/c1-12(24)20-6-3-8-23-9-7-21(19(20)23)15-5-4-13(25)10-16(15)22-17(21)14(11-20)18(26)27-2/h4-5,10,12,19,22,24-25H,3,6-9,11H2,1-2H3/t12-,19-,20-,21-/m0/s1

> <INCHI_KEY>
FHMZPCPNSNRDQC-XSGSXHBCSA-N

> <FORMULA>
C21H26N2O4

> <MOLECULAR_WEIGHT>
370.449

> <EXACT_MASS>
370.189257325

> <JCHEM_ACCEPTOR_COUNT>
5

> <JCHEM_ATOM_COUNT>
53

> <JCHEM_AVERAGE_POLARIZABILITY>
39.87686585279209

> <JCHEM_BIOAVAILABILITY>
1

> <JCHEM_DONOR_COUNT>
3

> <JCHEM_FORMAL_CHARGE>
0

> <JCHEM_GHOSE_FILTER>
1

> <JCHEM_IUPAC>
methyl (1R,12R,19R)-5-hydroxy-12-[(1S)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0^{1,9}.0^{2,7}.0^{16,19}]nonadeca-2,4,6,9-tetraene-10-carboxylate

> <JCHEM_LOGP>
0.5359681376838934

> <JCHEM_MDDR_LIKE_RULE>
0

> <JCHEM_NUMBER_OF_RINGS>
5

> <JCHEM_PHYSIOLOGICAL_CHARGE>
1

> <JCHEM_PKA>
14.397722288183548

> <JCHEM_PKA_STRONGEST_ACIDIC>
9.355199143396105

> <JCHEM_PKA_STRONGEST_BASIC>
9.963376997633874

> <JCHEM_POLAR_SURFACE_AREA>
82.03

> <JCHEM_REFRACTIVITY>
103.8586

> <JCHEM_ROTATABLE_BOND_COUNT>
3

> <JCHEM_RULE_OF_FIVE>
1

> <JCHEM_TRADITIONAL_IUPAC>
methyl (1R,12R,19R)-5-hydroxy-12-[(1S)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0^{1,9}.0^{2,7}.0^{16,19}]nonadeca-2,4,6,9-tetraene-10-carboxylate

> <JCHEM_VEBER_RULE>
0

$$$$

HEADER    PROTEIN                                 06-SEP-22   NONE
TITLE     NULL                                                        
COMPND    NULL                                                        
SOURCE    NULL                                                        
KEYWDS    NULL                                                        
EXPDTA    NULL                                                        
AUTHOR    Marvin                                                      
REVDAT   1   06-SEP-22         0                                  
HETATM    1  C   UNK     0       3.880  10.684   0.000  0.00  0.00           C+0
HETATM    2  O   UNK     0       3.637   9.163   0.000  0.00  0.00           O+0
HETATM    3  C   UNK     0       4.833   8.193   0.000  0.00  0.00           C+0
HETATM    4  O   UNK     0       6.271   8.743   0.000  0.00  0.00           O+0
HETATM    5  C   UNK     0       4.591   6.672   0.000  0.00  0.00           C+0
HETATM    6  C   UNK     0       5.786   5.702   0.000  0.00  0.00           C+0
HETATM    7  N   UNK     0       7.308   5.941   0.000  0.00  0.00           N+0
HETATM    8  C   UNK     0       8.005   4.568   0.000  0.00  0.00           C+0
HETATM    9  C   UNK     0       9.493   4.168   0.000  0.00  0.00           C+0
HETATM   10  C   UNK     0       9.890   2.680   0.000  0.00  0.00           C+0
HETATM   11  O   UNK     0      11.377   2.280   0.000  0.00  0.00           O+0
HETATM   12  C   UNK     0       8.799   1.592   0.000  0.00  0.00           C+0
HETATM   13  C   UNK     0       7.312   1.992   0.000  0.00  0.00           C+0
HETATM   14  C   UNK     0       6.915   3.480   0.000  0.00  0.00           C+0
HETATM   15  C   UNK     0       5.544   4.181   0.000  0.00  0.00           C+0
HETATM   16  C   UNK     0       6.512   2.983   0.000  0.00  0.00           C+0
HETATM   17  C   UNK     0       5.672   1.692   0.000  0.00  0.00           C+0
HETATM   18  N   UNK     0       3.863   2.110   0.000  0.00  0.00           N+0
HETATM   19  C   UNK     0       2.425   1.559   0.000  0.00  0.00           C+0
HETATM   20  C   UNK     0       1.229   2.530   0.000  0.00  0.00           C+0
HETATM   21  C   UNK     0       1.472   4.050   0.000  0.00  0.00           C+0
HETATM   22  C   UNK     0       2.910   4.601   0.000  0.00  0.00           C+0
HETATM   23  C   UNK     0       1.714   5.571   0.000  0.00  0.00           C+0
HETATM   24  C   UNK     0       1.957   7.092   0.000  0.00  0.00           C+0
HETATM   25  O   UNK     0       0.276   5.021   0.000  0.00  0.00           O+0
HETATM   26  C   UNK     0       3.152   6.122   0.000  0.00  0.00           C+0
HETATM   27  C   UNK     0       4.106   3.630   0.000  0.00  0.00           C+0
CONECT    1    2                                                            
CONECT    2    1    3                                                       
CONECT    3    2    4    5                                                  
CONECT    4    3                                                            
CONECT    5    3    6   26                                                  
CONECT    6    5    7   15                                                  
CONECT    7    6    8                                                       
CONECT    8    7    9   14                                                  
CONECT    9    8   10                                                       
CONECT   10    9   11   12                                                  
CONECT   11   10                                                            
CONECT   12   10   13                                                       
CONECT   13   12   14                                                       
CONECT   14   13    8   15                                                  
CONECT   15   14    6   16   27                                             
CONECT   16   15   17                                                       
CONECT   17   16   18                                                       
CONECT   18   17   19   27                                                  
CONECT   19   18   20                                                       
CONECT   20   19   21                                                       
CONECT   21   20   22                                                       
CONECT   22   21   23   26   27                                             
CONECT   23   22   24   25                                                  
CONECT   24   23                                                            
CONECT   25   23                                                            
CONECT   26   22    5                                                       
CONECT   27   22   18   15                                                  
MASTER        0    0    0    0    0    0    0    0   27    0   62    0
END

View in JSmol

Synonyms

Value	Source
Methyl (1R,12R,19R)-5-hydroxy-12-[(1S)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0,.0,.0,]nonadeca-2(7),3,5,9-tetraene-10-carboxylic acid	Generator

Chemical Formula

C₂₁H₂₆N₂O₄

Average Mass

370.4490 Da

Monoisotopic Mass

370.18926 Da

IUPAC Name

methyl (1R,12R,19R)-5-hydroxy-12-[(1S)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0^{1,9}.0^{2,7}.0^{16,19}]nonadeca-2,4,6,9-tetraene-10-carboxylate

Traditional Name

methyl (1R,12R,19R)-5-hydroxy-12-[(1S)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0^{1,9}.0^{2,7}.0^{16,19}]nonadeca-2,4,6,9-tetraene-10-carboxylate

CAS Registry Number

Not Available

SMILES

COC(=O)C1=C2NC3=CC(O)=CC=C3[C@@]22CCN3CCC[C@](C1)([C@H](C)O)[C@@H]23

InChI Identifier

InChI=1S/C21H26N2O4/c1-12(24)20-6-3-8-23-9-7-21(19(20)23)15-5-4-13(25)10-16(15)22-17(21)14(11-20)18(26)27-2/h4-5,10,12,19,22,24-25H,3,6-9,11H2,1-2H3/t12-,19-,20-,21-/m0/s1

InChI Key

FHMZPCPNSNRDQC-XSGSXHBCSA-N

Experimental Spectra

Not Available

Predicted Spectra

Not Available

Chemical Shift Submissions

Not Available

Species

Species of Origin

Not Available

Chemical Taxonomy

Description

Belongs to the class of organic compounds known as aspidospermatan-type alkaloids. These are tryptophan-derived alkaloids that are derived from the fusion of tryptamine and a terpene unit (generally either 9 or 10 carbons). Aspidospermine and aspidospermidine (along with tabersonine) are the archetypical members of the Aspidosperma alkaloids.

Kingdom

Organic compounds

Super Class

Alkaloids and derivatives

Class

Aspidospermatan-type alkaloids

Sub Class

Not Available

Direct Parent

Aspidospermatan-type alkaloids

Alternative Parents

Substituents

Aspidosperma alkaloid
Plumeran-type alkaloid
Carbazole
Indole or derivatives
Dihydroindole
Indolizidine
Secondary aliphatic/aromatic amine
1-hydroxy-2-unsubstituted benzenoid
Aralkylamine
Piperidine
N-alkylpyrrolidine
Benzenoid
Enoate ester
Pyrrolidine
Methyl ester
Alpha,beta-unsaturated carboxylic ester
1,3-aminoalcohol
Vinylogous amide
Amino acid or derivatives
Carboxylic acid ester
Tertiary aliphatic amine
Tertiary amine
Secondary alcohol
Secondary amine
Organoheterocyclic compound
Carboxylic acid derivative
Enamine
Azacycle
Monocarboxylic acid or derivatives
Amine
Alcohol
Organic nitrogen compound
Carbonyl group
Organopnictogen compound
Organic oxide
Hydrocarbon derivative
Organic oxygen compound
Organonitrogen compound
Organooxygen compound
Aromatic heteropolycyclic compound

Molecular Framework

Aromatic heteropolycyclic compounds

External Descriptors

Not Available

Physical Properties

State

Not Available

Experimental Properties

Property	Value	Reference
Melting Point	Not Available	Not Available
Boiling Point	Not Available	Not Available
Water Solubility	Not Available	Not Available
LogP	Not Available	Not Available

Predicted Properties

Property	Value	Source
logP	0.54	ChemAxon
pKa (Strongest Acidic)	9.36	ChemAxon
pKa (Strongest Basic)	9.96	ChemAxon
Physiological Charge	1	ChemAxon
Hydrogen Acceptor Count	5	ChemAxon
Hydrogen Donor Count	3	ChemAxon
Polar Surface Area	82.03 Å²	ChemAxon
Rotatable Bond Count	3	ChemAxon
Refractivity	103.86 m³·mol⁻¹	ChemAxon
Polarizability	39.88 Å³	ChemAxon
Number of Rings	5	ChemAxon
Bioavailability	Yes	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	Yes	ChemAxon
Veber's Rule	No	ChemAxon
MDDR-like Rule	No	ChemAxon

External Links

HMDB ID

Not Available

DrugBank ID

Not Available

Phenol Explorer Compound ID

Not Available

FoodDB ID

Not Available

KNApSAcK ID

Not Available

Chemspider ID

Not Available

KEGG Compound ID

Not Available

BioCyc ID

Not Available

BiGG ID

Not Available

Wikipedia Link

Not Available

METLIN ID

Not Available

PubChem Compound

163044784

PDB ID

Not Available

ChEBI ID

Not Available

Good Scents ID

Not Available

References

General References

LOTUS database [Link]

Showing NP-Card for methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate (NP0234745)

MOL for NP0234745 (methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate)

3D MOL for NP0234745 (methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate)

3D SDF for NP0234745 (methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate)

3D-SDF for NP0234745 (methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate)

PDB for NP0234745 (methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate)

3D PDB for NP0234745 (methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate)

SMILES for NP0234745 (methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate)

INCHI for NP0234745 (methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate)

Structure for NP0234745 (methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate)

3D Structure for NP0234745 (methyl (1r,12r,19r)-5-hydroxy-12-[(1s)-1-hydroxyethyl]-8,16-diazapentacyclo[10.6.1.0¹,⁹.0²,⁷.0¹⁶,¹⁹]nonadeca-2,4,6,9-tetraene-10-carboxylate)