Synthesis and in vitro biological activity of new deaza analogs of folic acid, aminopterin, and methotrexate with an L-ornithine side chain
作者:Andre Rosowsky、Ronald A. Forsch、Henry Bader、James H. Freisheim
DOI:10.1021/jm00108a032
日期:1991.4
culture. Reductive amination of 2-acetamido-6-formylpyrido[2,3-d]pyrimidine-4(3H)-one with methyl N alpha-(4-aminobenzoyl)-N delta-(benzyloxycarbonyl)-L-ornithinate followed by removal of the blocking groups afforded the 5-deaza analogue of Pter-Orn, whereas N-alkylation of methyl N alpha-(4-aminobenzoyl)-N delta-(benzyloxycarbonyl)-L-ornithinate with 2-amino-6-(bromomethyl)quinazolin-4(3H)-one and deprotection
N alpha-pteroyl-L-鸟氨酸(Pter-Orn)的5-deaza和5,8-dideaza类似物,N alpha-(4-amino)的5-deaza,8-deaza和5,8-dideaza类似物合成了-4-脱氧蝶酰基-L-鸟氨酸(APA-Orn)和Nα-(4-氨基-4-脱氧-N10-甲基蝶酰基)-L-鸟氨酸(mAPA-Orn)的Nδ-羧甲基衍生物并作为二氢叶酸还原酶(DHFR)的抑制剂和培养物中肿瘤细胞生长的抑制剂进行了测试。用N-甲基-(4-氨基苯甲酰基)-N-δ-(苄氧羰基)-L-鸟氨酸甲酯对2-乙酰氨基-6-甲酰基吡啶并[2,3-d]嘧啶-4(3H)-进行还原胺化,然后除去封闭基团提供了Pter-Orn的5-deaza类似物,而甲基Nα-(4-氨基苯甲酰基)-Nδ-(苄氧基羰基)-L-鸟氨酸酯的N-烷基化与2-氨基-6-(溴甲基)喹唑啉-4(3H)-1,脱保护得到相应的5,8-dideaza类似物。2