2-噻吩乙酰氯 、
(6R)-3-carbamoyloxymethyl-7c-methoxy-7t-[(R)-5-methoxymethoxycarbonyl-5-(toluene-4-sulfonylamino)-pentanoylamino]-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid methoxymethyl ester 以
1,2-二氯乙烷 为溶剂,
生成 (6R)-3-carbamoyloxymethyl-7c-methoxy-7t-{[(R)-5-methoxymethoxycarbonyl-5-(toluene-4-sulfonylamino)-pentanoyl]-(thiophen-2-yl-acetyl)-amino}-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid methoxymethyl ester