First Synthesis of 5,6,7,8-Tetrahydro-8-deaza-8-thiafolic Acid.
作者:Magoichi SAKO、Reiko TOTANI、Kosaku HIROTA、Yoshifumi MAKI
DOI:10.1248/cpb.40.49
日期:——
5, 6, 7, 8-Tetrahydro-8-deaza-8-thiafolic acid (3) was synthesized as a diastereoisomeric mixture via thermal condensation of 5-hydroxyisocytosine (6) with diethyl N-[p-(2-amino-3-mercaptopropyl)aminobenzoyl]glutamate (10)after activation of the C(6)-position in 6 with N-bromosuccinimide/ethanol. The corresponding N5, N10-methylene derivative (5) was also prepared upon treatment of 3 with formaldehyde.
5, 6, 7, 8-四氢-8-去氮-8-硫叶酸(3)作为比分异构混合物,通过将5-羟基异胞苷(6)与二乙基N-[p-(2-氨基-3-硫代丙基)氨基苯甲酰]谷氨酸(10)在6的C(6)位置经过N-溴丁酰亚胺/乙醇激活后进行热缩合合成。相应的N5, N10-亚甲基衍生物(5)在与甲醛反应后也被制备出来。