dimethyl 2-(3-oxopentyl)propanedioate

3-羟基-3-甲基-1-对甲苯磺酰基吡咯烷-2-甲酸乙酯

2,5-二乙基噻吩

α-香附酮

(4aR,7R)-1,4a-dimethyl-7-(prop-1-en-2-yl)-4,4a,5,6,7,8-hexahydronaphthalen-2(3H)-one