Showing structure for (1r,3s,4r,9s,12s,13r,14s,17s,19s,21r)-3,6,13,14,19-pentamethyl-24,27-dioxa-23-azaheptacyclo[11.10.3.1¹⁷,²¹.0¹,¹⁴.0³,¹².0⁴,⁹.0¹⁷,²³]heptacos-6-ene-8,11,25-trione