Quinazoline Antifolates Thymidylate Synthase Inhibitors: Lipophilic Analogues with Modification to the C2-Methyl Substituent
作者:Laurent F. Hennequin、F. Thomas Boyle、J. Michael Wardleworth、Peter R. Marsham、Rosemary Kimbell、Ann L. Jackman
DOI:10.1021/jm950645n
日期:1996.1.1
thymidylate synthase (TS) inhibitor 1-[[N-[4-[N-[(3,4-dihydro-2-methyl-4-oxo-6-quinazolinyl)methyl]-N- prop-2-ynylamino]benzoyl]amino]methyl]-3-nitrobenzene (4a) has led to the synthesis of quinazolinone antifolates bearing functionalized alkyl substituents at C2. A general synthetic route was developed which involved coupling the appropriate 1-[[N-[4-(alkylamino)benzoyl)amino]methyl]-3-nitrobenzene 20-22 with
有效的胸苷酸合酶(TS)抑制剂1-[[N- [4- [N-[(3,4-二氢-2-甲基-4-氧代-6-喹唑啉基)甲基]-]-N-prop-2的修饰-炔基氨基]苯甲酰基]氨基]甲基] -3-硝基苯(4a)导致了在C2处带有官能化烷基取代基的喹唑啉酮抗叶酸酯的合成。开发了一种通用的合成路线,该路线涉及将合适的1-[[N- [4-(烷基氨基)苯甲酰基)氨基]甲基] -3-硝基苯20-22与6-(溴甲基)-2-(乙酰氧基甲基)-偶合。 3,4-二氢-4-氧代喹唑啉9或10。用氯原子取代2-乙酰氧基,然后用各种亲核试剂取代25a-c的卤素,得到化合物26-40。这些新型抗叶酸药物多数具有良好的TS(IC50 <1 microM)和生长抑制(IC50 0.1-1 microM)。该系列中的TS抑制剂显然不需要降低的叶酸载体(RFC)才能进入细胞(它们最有可能通过被动扩散而穿透细胞膜),并且没有被聚谷氨酸