p. 1641 - 1653
(2007/10/03)2-mercapto-pyrido[3,4-d][1,3]thiazole
(6R,7R)-7-{2-[(Z)-1-tert-Butoxycarbonyl-1-methyl-ethoxyimino]-2-[2-(trityl-amino)-thiazol-4-yl]-acetylamino}-3-iodomethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 4-methoxy-benzyl ester
4-methoxybenzyl (6R,7R)-7-((Z)-2-(((1-(tert-butoxy)-2-methyl-1-oxopropan-2-yl)oxy)imino)-2-(2-(tritylamino)-thiazol-4-yl)acetamido)-3-(chloromethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
(Z)-2-(1-t-butoxycarbonyl-1-methylethoxyimino)-2-[2-(triphenylmethylamino)thiazol-4-yl]acetic acid