Synthesis and isolation of chloro-β-carbolines obtained by chlorination of β-carboline alkaloids in solution and in solid state
作者:Maria A. Ponce、Olga I. Tarzi、Rosa Erra-Balsells
DOI:10.1002/jhet.5570400304
日期:2003.5
Rf, 1H nmr, 13C nmr and ms) together with the preparation, isolation and charaterization, for the first time, of the chloroderivatives obtained from harmine (3a-3c), harmol (4a-4b) and 7-acetylharmol (5a-5c). As chlorinating reagent N-chlorosuccinimide and N-chlorobenzotriazole in solution as well as the β-carboline -N-chlorosuccinimide solid mixture have been used and their uses have been compared.
在不同的实验条件下,β-咔啉(1-5)会被N-氯琥珀酰亚胺和N-氯苯并三唑进行亲电芳香取代。虽然6-氯和8-氯去甲harmane(1A和1B)和6-氯和8-氯harmane(图2a和2b中通过氯化与次氯酸钠去甲harmane获得)(1)和harmane ( 2)近期被分离出来并进行了全面表征,因此从未描述过正丁烷和异丁烷的其他氯代衍生物。二氯衍生物1c和1c的制备,后续分离,纯化和全面表征报告了2c(mp,R f,1 H nmr,13 C nmr和ms)以及从harmine (3a-3c),harmol (4a-4b )获得的氯衍生物的制备,分离和表征)和7-乙酰基甘露醇(5a-5c)。作为溶液中的N-氯琥珀酰亚胺和N-氯苯并三唑以及β-咔啉-N-氯琥珀酰亚胺固体混合物作为氯化试剂,已经对其用途进行了比较。异丁烷的其他一氯衍生物的Gc(t R)和gc-ms(m / z)数据(1d)还包括痕