ROTH B.; STRELITZ J. Z.; RANCKMAN B. S., I. MED. CHEM., 1980, 23, NO 4, 379-384
作者:ROTH B.、 STRELITZ J. Z.、 RANCKMAN B. S.
DOI:——
日期:——
2,4-Diamino-5-benzylpyrimidines and analogs as antibacterial agents. 2. C-Alkylation of pyrimidines with Mannich bases and application to the synthesis of trimethoprim and analogs
作者:Barbara Roth、Justina Z. Strelitz、Barbara S. Rauckman
DOI:10.1021/jm00178a007
日期:1980.4
A new route to 5-(p-hydroxybenzyl)pyrimidines has been developed which utilizes phenolic Mannich bases plus pyrimidines containing at least two activating groups. The products can be alkylated on the phenolic oxygen or on the pyrimidine N-1 atom, depending on conditions. This method has been used to prepare trimethoprim, a broad-spectrum antibacterial agent, starting from 2,4-diaminopyrimidine and