| 摘要 |
<p>PURPOSE:Penicillin derivatives of formula I(R1 is H, C1-5 alkyl;R2 is amino protective group;R3, R4, and R5 are H, OH, C1-5 lower alkoxy, amino, halogen;n is 0,1) and their non-toxic salts, e.g. potassium 6-D-2-[2-N-tosylN-methylamino)-2-phenylacetamido]-2-phenylacetamide pencillanate.</p> |
