RESULTS and CONCLUSION The proportion of the ingredients and the method of the postprocessing had been improved in the process of synthesis of the key intermediate α-sulfobenzyl cephalosporin, with the increased yield from 30% to 42%.
RESULTS and CONCLUSION The proportion of the ingredients and the method of the postprocessing had been improved in the process of synthesis of the key intermediate α-sulfobenzyl cephalosporin, with the increased yield from 30% to 42%.
结果与结论通过改进关键中间体7-（α-磺苯乙酰胺）－头孢菌素酸钠合成的投料比与后处理方法，使该步反应产率由30%提高到42%。