New tetrahydroisoquinolinones from Hyeronima oblonga (Euphorbiaceae)

被引:8
作者
Alves, TMA [1 ]
Zani, CL [1 ]
机构
[1] Minist Saude, Ctr Pesquisas Rene Rachou, Lab Quim Prod Naturais, Fiocruz MS, BR-30190002 Belo Horizonte, MG, Brazil
关键词
D O I
10.1016/S0040-4039(98)02276-X
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The bioassay-guided fractionation of the CH2Cl2 extract from the wood of Hyeronima oblonga (Euphorbiaceae) afforded two new alkaloids with a tetrahydroisoquinolinone nucleus described here for the first time. The compounds 3-methyl-4-methoxy-6-(1-oxoctyl.)-5,6,7,8-tetrahydro-1(2H) isoquinolinone (Hyeronine A, 4a) and 3-methyl-4-methoxy-6-(1-oxohexyl)-5,6, 7,8-tetrahydro-1(2H)isoquinolinone (Hyeronine B, 4b) displayed LC50 of 4 ppm in the brine shrimp lethality assay. (C) 1998 Elsevier Science Ltd. All rights reserved.
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页码:205 / 208
页数:4
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