(3R,4R,5R)-ethyl 4-acetamido-5-(methoxymethoxy)-3-(pentan-3-yloxy)cyclohex-1-enecarboxylate

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

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

莽草酸乙酯

莽草酸