Purine and carboline alkaloids from ascidian Symplegma oceania / 中国中药杂志
China Journal of Chinese Materia Medica
; (24): 1018-1020, 2013.
Article
em Zh
| WPRIM
| ID: wpr-350669
Biblioteca responsável:
WPRO
ABSTRACT
Five purine and carboline alkaloids were isolated from the methanol extract of the ascidian Symplegma oceania. Classic chromatographies including preparative HPLC were used for isolation and purification of the compounds. The structures were established as 6-methoxy-7-methyl-8-oxoguanine (1), 2-methylimino-3-methyl-6-methylamino- 9H-purine (2), 1,2,3,4-tetrahydro-betacarboline (3), 1,2,3,4-tetrahydro-1-methyl-beta-carboline (4) and 1,2,3,4-tetrahydro-beta-carboline-3-carboxylic acid (5) by comparison the spectroscopic data (MS, 1H, 13C-NMR) with those reported in the literatures. Compounds 2-5 were reported from the the genus Symplegma for the first time. The purine and carboline were the major alkaloid types of S. oceania.
Texto completo:
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Índice:
WPRIM
Assunto principal:
Purinas
/
Urocordados
/
Carbolinas
/
Espectroscopia de Ressonância Magnética
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Estrutura Molecular
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Química
/
Alcaloides
Limite:
Animals
Idioma:
Zh
Revista:
China Journal of Chinese Materia Medica
Ano de publicação:
2013
Tipo de documento:
Article