2,3-dimethylbutanal

3,4-二甲基氧杂环丁-2-酮

benzyl 2-benzylsulfonyl-2,3-dimethylbutyrate

benzyl 2-benzylsulfonyl-3-methylbutyrate

(8S,9S,10R,13R,14S,17R)-10,13-二甲基-17-[(E,1R,4R)-1,4,5-三甲基己-2-烯基]-1,2,8,9,11,12,14,15,16,17-十氢环戊烯并[a]菲-3-酮