上游原料
2-methoxy-2-oxoacetyl chloridemethyl (2S)-2-pyrrolidinecarboxylatemethyl (2S)-1-(2-methoxy-2-oxoacetyl)-2-pyrrolidinecarboxylatemethyl (2S)-1-(3,3-dimethyl-2-oxopentanoyl)-2-pyrrolidinecarboxylate(2S)-1-(3,3-dimethyl-2-oxopentanoyl)-2-pyrrolidinecarboxylic acid3,3-diphenyl-1-propanethiol; 3,3-diphenylpropylhydrosulfide
