(3R,4R,5R)-3-(1-乙基丙氧基)-4-羟基-5-[(甲基磺酰基)氧基]-1-环己烯-1-羧酸乙酯

ethyl (3aR,7R,7aR)-2,2-dimethyl-7-methanesulfonyloxy-3a,6,7,7a-tetrahydrobenzo[1,3]dioxole-5-carboxylate

ethyl 3,4-O-isopropylidene-5-O-(methansulfonyl)shikimate

ethyl 3,4-O-isopropylidene-5-O-methanesulfonyl quinate

右旋奎宁酸