tert-butyl 3-(bromomethyl)-7-[[(2Z)-2-methoxyimino-2-[2-(tritylamino)-1,3-thiazol-4-yl]acetyl]amino]-5,8-dioxo-5λ4-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 、
4-Cyanmethylmercapto-pyridin 生成 (2E)-2-(2-amino-1,3-thiazol-4-yl)-N-[4'-(cyanomethylsulfanyl)-3,12-dioxospiro[11-oxa-6-thia-2-aza-10-azoniatricyclo[6.4.0.02,5]dodec-1(8)-ene-10,1'-pyridin-1-ium-4-ide]-4-yl]-2-methoxyiminoacetamide