(R)-(+)-3-(叔丁基二甲基硅氧基)-5-氧代-1-环戊烯基-1-己酸甲酯

(S)-(-)-3-羟基-5-氧代-1-环戊烯基-1-己酸甲酯

methyl 7-(3(R)-(acetyloxy)-5-oxo-1-cyclopenten-1-yl)heptanoate

(R)-(+)-3-羟基-5-氧代-1-环戊烯-1-庚酸甲酯

methyl 7-(3-acetyloxy-5-oxocyclopenten-1-yl)heptanoate