190774-62-0 7,20-Dithia-4,21-diazatricyclo(14.3.1.16,9)heneicosa-6(21),8,10,12-tetraene-1-acetic acid, alpha,15,17-trihydroxy-alpha,5,17-trimethyl-3,14-dioxo-, methyl ester, (1R-(1R*(S*),5R*,10Z,12E,15S*,16S*,17R*))-