甲醇

柠檬酸

正硅酸甲酯

3-hydroxy-3-((((4R,4aR,7S,7aR,12bS)-9-methoxy-3-methyl-2,3,4,4a,7,7a-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7-yl)oxy)carbonyl)pentanedioic acid

acetonedicarboxylic acid dimethyl ester