7241-02-3

4-ethyl 5,6-dimethyl 6a-benzyl-1-[1-(methoxycarbonyl)-2-methylprop-1-en-1-yl]-2-oxooctahydroazeto[3,2-d]pyrrolo[2,1-b][1,3]thiazole-4,5,6-tricarboxylate