(1S,7aS)-(+)-1-hydroxy-4,7a-dimethyl-2,3,7,7a-tetrahydro-1H-indene-5(6)-one

叔丁基二苯基氯硅烷

(S)-4,7alpha-二甲基-2,3,7,7alpha-四氢-6H-茚-1,5-二酮

2-甲基-1,3-环戊二酮

1-戊烯-3-酮