作者:H. Bieräugel、R. Plemp、H.C. Hiemstra、U.K. Pandit
DOI:10.1016/s0040-4020(01)90903-2
日期:1983.1
with acetic anhydride or tosyl chloride and methyl iodide give imidazolinium salts that serve as models of N5,N10-(CH+)-tetrahydrofolate (THF) coenzymes (7a, b and 18a, b). Reduction of the latter salts with sodium borohydride or reaction with anions (R−) give the corresponding 5,10-[CH(H,R)]-THF models. Mono- and bifunctional nucleophiles react with 18a, b to yield carbon-transfer products 6-Alkylamino-1
羧酸酯与1,2-二氨基乙烷反应生成咪唑啉,其与乙酸酐或甲苯磺酰氯和甲基碘连续反应后,生成咪唑啉鎓盐,可作为N 5,N 10-(CH +)-四氢叶酸(THF)辅酶的模型(7a,b和18a,b)。用硼氢化反应或钠与阴离子(R后者盐的还原- )得到相应的5,10- [CH(H,R)] - THF模型。单功能和双功能亲核试剂与18a,b反应在乙酸存在下,生成碳转移产物6-烷基氨基-1,3-二甲基尿嘧啶与1 tosyl-3,4,4-三甲基咪唑烷(18b的还原产物)反应,通过一种机理形成碳转移产物它与胸苷酸合成酶的作用机理非常相似。