pivaloyloxymethyl 7-(Z)-2-[2-(tert-butoxycarbonylamino)thiazol-4-yl]pent-2-enamido-3-(carbamoyloxymethyl)-3-cephem-4-carboxylate
7-(Z)-2-[2-(tert-butoxycarbonylamino)thiazole-4-yl]pent-2-énamido-3-(carbamoyloxyméthyl)-3-céphem-4-carboxylate de pivaloyloxyméthyle