(±)-heterocarpine, a hydroxymethylated isoquinoline alkaloid from ceratocapnos heterocarpa
摘要:
Heterocarpine, a novel alkaloid from Ceratocapnos heterocarpa, has been characterised as (+/-)-1-hydroxymethyl-2-(3-hydroxy-4-methoxybenzyl)-7-hydroxy-6-methoxy-1,2,3,4-tetrahydroisoquinoline. The alkaloid was synthesized from the corresponding 3,4-dihydro isoquinoliniun salt. A key step in the process is the acid resin catalysed methanolysis of the l-carbamoyl isoquinoline. The structural correlation of the hydroxymethylated alkaloids heterocarpine and malacitanine with their unsubstituted counterparts capnosine and caseamine, also present in the plant, might be of biosynthetic significance. (C) 1998 Elsevier Science Ltd. All rights reserved.
[EN] 3,4-DIHYDROISOQUINOLINIUM SALT DERIVATIVES<br/>[FR] DERIVES DU SEL DE 3,4-DIHYDROISOQUINOLINIUM
申请人:HANWHA CHEMICAL CORP
公开号:WO2006129978A1
公开(公告)日:2006-12-07
[EN] The present invention relates to 3,4-dihydroisoquinolinium salt derivatives. More specifically, the present invention relates to 3,4-dihydroisoquinolinium salt derivatives of the following chemical formula (I). [FR] La présente invention concerne des dérivés du sel de 3,4-dihydroisoquinolinium. Elle concerne plus spécifiquement des dérivés du sel de 3,4-dihydroisoquinolinium de formule chimique (I).