Showing structure for 17,22-dihydroxy-16,20-dimethyl-4-oxa-14-azahexacyclo[15.4.1.0²,⁷.0⁸,²¹.0¹²,²⁰.0¹⁴,¹⁹]docosa-1(22),2(7),8(21)-triene-3,9-dione