SYNTHESIS AND ANTIFOLATE PROPERTIES OF 5,10-ETHANO-5,10-DIDEAZAAMINOPTERIN

被引:64
作者
DEGRAW, JI [1 ]
CHRISTIE, PH [1 ]
COLWELL, WT [1 ]
SIROTNAK, FM [1 ]
机构
[1] SLOAN KETTERING MEM CANC CTR,NEW YORK,NY 10014
关键词
D O I
10.1021/jm00080a017
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
2-Carbomethoxy-4-(p-carbomethoxyphenyl)cyclohexanone was prepared in a four-step process and thermally condensed with 2,4,6-triaminopyrimidine to afford methyl 2,4-diamino-4-deoxy-7-hydroxy-5,10-ethano-5,10-dideazapteroate. Reduction of the 7-oxo function with borane gave the 7,8-dihydro pterin which was subsequently oxidized to the fully aromatic pteroate ester with dicyanodichlorobenzoquinone. Saponification of the benzoate ester, coupling with diethyl glutamate and final ester hydrolysis afforded the title compound. This novel deazaaminopterin analogue was approximately as potent as methotrexate in vitro in terms of DHFR and L1210 cell growth inhibition. There are indications of diastereomeric differences in the enzyme inhibition measurements. A significant transport advantage over MTX for influx into L1210 cells was observed. The compound was active against the E 0771 murine mammary solid tumor, but further investigation with individual diastereomers is required to define the ED50.
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收藏
页码:320 / 324
页数:5
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