(2017/11/10)
tert-butyl aminooxyacetate
2-oxo-2-(2-(tritylamino)thiazol-4-yl)acetic acid
ethyl 2-oxo-2-(2-(tritylamino)thiazol-4-yl)acetate
ethyl 2-(2-aminothiazol-4-yl)glyoxylate
trityl chloride
t-Butyl (6R,7R)-7-[2-(Z)-t-Butoxycarbonylmethoxyimino-2-(2-tritylaminothiazol-4-yl)acetamido]-3-cyclopropylceph-3-em-4-carboxylate
diphenylmethyl (6R,7R)-3-bromomethyl-7-[(Z)-2-(t-butoxycarbonylmethoxyimino)-2-(2-tritylaminothiazol-4-yl)acetamido]ceph-3-em-4-carboxylate
[1-[(2S,3S)-2-(4-Nitro-phenoxycarbonylsulfanylmethyl)-4-oxo-1-sulfo-azetidin-3-ylcarbamoyl]-1-[2-(trityl-amino)-thiazol-4-yl]-meth-(Z)-ylideneaminooxy]-acetic acid tert-butyl ester
[1-[(2S,3S)-2-(4-Nitro-phenoxycarbonylsulfanylmethyl)-4-oxo-azetidin-3-ylcarbamoyl]-1-[2-(trityl-amino)-thiazol-4-yl]-meth-(Z)-ylideneaminooxy]-acetic acid tert-butyl ester
[1-((2S,3S)-2-Methanesulfonyloxymethyl-4-oxo-azetidin-3-ylcarbamoyl)-1-[2-(trityl-amino)-thiazol-4-yl]-meth-(Z)-ylideneaminooxy]-acetic acid tert-butyl ester