Oxidation of 1-benzyl-3,4-dihydroisoquinolines with cerium(IV) ammonium nitrate (CAN) under mild condition yielded the mixture of corresponding 1-benzylisoquinolines (b-type) and 1-benzoylisoquinolines (a- or c-type) in an equal yields. The selective oxidation products (c-type) can be prepared by using MeCN instead of MeOH. In the antiplatelet assays, four inducers were employed, including AA, Col
Synthesis of 6,7-dimethoxy-1-halobenzyl-1,2,3,4-tetrahydroisoquinolines
作者:Su-Dong Cho、Deok-Heon Kweon、Young-Jin Kang、Sang-Gyeong Lee、Woo Song Lee、Yong-Jin Yoon
DOI:10.1002/jhet.5570360507
日期:1999.9
Some 6,7-dimethoxy-1-halobenzyl-1,2,3,4-tetrahydroisoquinolines were synthesized from 2-(3,4-dimethoxyphenyl)ethylamine and halophenylacetic acids in three steps in good yield.
Pyrrolo-benzylisoquinolines were prepared as target compounds and their antiplatelet aggregation activity, adrenoreceptor affinity, and cytotoxicity were screened. Compounds 1d-9d showed specific antiplatelet aggregation activity induced by arachidonic acid and collagen. Among them, 8d and 9d exhibited better activity than the reference drug, aspirin and 9d also showed inhibition of platelet aggregation by all four inducers. (C) 2003 Elsevier Science Ltd. All rights reserved.