Synthesis of cannabinoid model compounds. Part 2: (3R, 4R)-?1(6)-Tetrahydrocannabinol-5?-oic acid and 4?(R,S)-Methyl-(3R, 4R)-?1(6)-tetrahydrocannabinol-5?-oic Acid
作者:Ingo Franke、Michael Binder
DOI:10.1002/hlca.19800630845
日期:1980.12.10
(3R, 4R)-Δ1(6)-tetrahydrocannabinol-5″-oic acid (22) and 4″(R, S)-methyl-(3R, 4R)-Δ1(6)-tetrahydrocannabinol-5″-oic acid (23) were synthesized by acid-catalyzed condensation of (+)-trans-p-mentha-2, 8-dien-l-ol (1) with the substituted resorcinols 18 and 19 obtained by a Wittig reaction between 3, 5-bis(benzyloxy)benzaldehyde (7) and methyl 4-bromobutanoate (10) or methyl 4-bromo-2(R, S)-methylbutanoate
两种新型大麻素模型化合物(3 R,4 R)-Δ1 (6) -四氢大麻酚-5”-油酸(22)和4”(R,S)-甲基-(3 R,4 R)-Δ通过酸催化(+)-反式-对-mentha-2,8-二烯-1-醇(1)与取代的间苯二酚18的缩合反应合成1(6) -四氢大麻酚-5''-油酸(23)和19通过3,5-双(苄氧基)苯甲醛(7)和4-溴丁酸甲酯(10)之间的Wittig反应获得。或4-溴2(R,S)-甲基丁酸甲酯(11)的甲酯。随后进行氢化。水解得到的甲酯20和21,得到酸22和23。