20350-15-6 4H-Cyclopent[f]oxacyclotridecin-4-one, 1,6,7,8,9,11a,12,13, 14,14a-decahydro-1,13-dihydroxy-6-methyl-, [1R-(1R*,2E,6S*, 10E,11aS*,13S*,14aR*)]- Antibiotic from Penicillium cyaneum Ascotoxin B 174987 Brefeldin A Cyanein Decumbin Lunatin NSC56310 PFIZER B174987 Pfizer B 174987