老年强身补漏法 筑得丹基更易修：敲竹唤龟诀之理与法
Published in Acta Scientiarum Naturalium Universitatis Sunyatseni • Jan 1, 1994
NobleIDNI3P93W41R58S33
Authors:
陈天乐
Abstract
Biosynthesis of cephalosporin antibiotics involves an expansion of the five-membered thiazolidine ring of penicillin N to the six-membered dihydrothiazine ring of deacetoxycephalosporin C by a deacetoxycephalosporin C synthetase (DAOCS) enzyme activity. Hydroxylation of deacetoxycephalosporin C to f...
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