851857-01-7

1-Pyrrolidinecarboxylic acid,2-(aminocarbonyl)-2-[[(1R,5R)-5-[[(1,1-dimethylethyl)diphenylsilyl]oxy]-6,6-dimethyl-2-oxo-3-cyclohexen-1-yl]methyl]-, 1,1-dimethylethyl ester,(2R)-