反応 #216062

反応方程式

p-methoxybenzyl 7-{(Z)-2-(2-tritylaminothiazol-4-yl)-2-(1-tert-butoxycarbonyl-1-methylethoxyimino)acetamido}-3-chloromethyl-3-cephem-4-carboxylate

2-mercaptothiazolo[5,4-c]pyridine

2-mercaptothiazolo[4,5-c]pyridine

→

title compound

収率 68.2%

p-methoxybenzyl 7-{(Z)-2-(2-tritylaminothiazol-4-yl)-2-(1-tert-butoxycarbonyl-1-methylethoxyimino)acetamido}-3-(thiazolo[5,4-c]pyridin-2-yl)thiomethyl-3-cephem-4-carboxylate

収率 68.2%

反応条件

後処理

1. 1
   その他respectively, the reaction and purification

実験手順

Using 276 mg of p-methoxybenzyl 7-{(Z)-2-(2-tritylaminothiazol-4-yl)-2-(1-tert-butoxycarbonyl-1-methylethoxyimino)acetamido}-3-chloromethyl-3-cephem-4-carboxylate and 60 mg of 2-mercaptothiazolo[5,4-c]pyridine in place of p-methoxybenzyl 7-{(Z)-2-(2-tritylaminothiazol-4-yl)-2-methoxyimino-acetamido}-3-chloromethyl-3-cephem-4-carboxylate and 2-mercaptothiazolo[4,5-c]pyridine, respectively, the reaction and purification were carried out in the same manner as in Example 1(a) to obtain 215 mg of the title compound in a yield of 68%.

出典