作者:John W. Huffman、Shu Yu
DOI:10.1016/s0968-0896(98)80008-4
日期:1998.12
A tetracyclic, conformationally constrained analogue of delta8-THC (2) has been synthesized in which a two carbon bridge exists between C2 and C2'. Two conceptually related syntheses of 2 are described, both of which employ 5,7-dimethoxy-4-oxo-1,2,3,4-tetrahydronaphthoic acid (11) as starting material. This substrate was converted to 5,7dimethoxy-2-propyl-1,2,3,4-tetrahydronaphthalene (7) and its 4-keto
已经合成了δ8-THC(2)的四环,构象受限的类似物,其中在C2和C2'之间存在两个碳桥。描述了2的两个概念上相关的合成,两者均使用5,7-二甲氧基-4-氧-1,2,3,4-四氢萘甲酸(11)作为起始原料。将该底物转化为5,7二甲氧基-2-丙基-1,2,3,4-四氢萘(7)及其4-酮衍生物(18)。11和18的去甲基化提供了相应的间苯二酚,将其与反式对薄荷脑醇缩合,得到大麻素2和酮衍生物(20)。LiA1H4 / A1C1(3)减少20。2。大麻素2对大麻素脑受体的亲和力较低(Ki = 703 +/- 98 nM)。