英文名称
methyl (4aR,7aS)-6-[(4-methoxyphenyl)methyl]-2,2,7a-trimethyl-5-oxo-7-(phenylmethoxymethyl)-4,4a-dihydro-3H-oxasilino[5,6-c]pyrrole-7-carboxylate;methyl 1-[(4-methoxyphenyl)methyl]-3,3-dimethyl-4-methylidene-5-oxo-2-(phenylmethoxymethyl)pyrrolidine-2-carboxylate