1326312-10-0 叔丁基 (4-氯苄基)(2-((3aR,5aR,5bR,7aR,9S,11aR,11bR,13aS)-9-羟基-1-异丙基-5a,5b,8,8,11a-五甲基-2-氧代-2,3,4,5,5a,5b,6,7,7a,8,9,10,11,11a,11b,12,13,13a-十八氢-3aH-环戊[a]屈-3a-基)-2-氧代乙基)氨基甲酸酯