(Z)-5-oxo-5-phenylmethoxy-2-[2-(phenylmethoxycarbonylamino)-1,3-thiazol-4-yl]pent-2-enoic acid 、
Diphenylmethyl 7β-amino-3-vinyl-ceph-3-em-4-carboxylate 生成 benzhydryl (7R)-3-ethenyl-8-oxo-7-[[(E)-5-oxo-5-phenylmethoxy-2-[2-(phenylmethoxycarbonylamino)-1,3-thiazol-4-yl]pent-2-enoyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate