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New phenolic glycosides from Phyllanthus cochinchinensis

Authors :
Zhao,Jian-Qiang
Wang,Yan-Ming
Lv,Jun-Jiang
Zhu,Hong-Tao
Wang,Dong
Yang,Chong-Ren
Xu,Min
Zhang,Ying-Jun
Source :
Journal of the Brazilian Chemical Society, Volume: 25, Issue: 8, Pages: 1446-1454, Published: AUG 2014, Journal of the Brazilian Chemical Society v.25 n.8 2014, Journal of the Brazilian Chemical Society, Sociedade Brasileira de Química (SBQ), instacron:SBQ
Publication Year :
2014
Publisher :
Sociedade Brasileira de QuĂ­mica, 2014.

Abstract

Chemical investigation of the whole plants of Phyllanthus cochinchinensis (Euphorbiaceae) led to the isolation of three new phenolic glycosides, phyllanthuosides A-C, together with 12 known compounds. Their structures were established on the basis of extensive spectroscopic analysis and chemical methods. Among them, phyllanthuosides A and B are two of the rare phenolic glycosides, featuring with a C6-C3-C6 skeleton. The absolute configurations of phyllanthuosides A and B were established by calculated electric circular dichroism (ECD) using time dependent density functional theory (TDDFT). The isolates were also tested for their cytotoxicity and antimicrobial activity. A investigação química das plantas Phyllanthus cochinchinensis (Euphorbiaceae) levou ao isolamento de três novos glicosídeos fenólicos, filantuosídeos A-C, juntamente com 12 compostos conhecidos. Suas estruturas foram determinadas com base em extensivas análises espectroscópicas e métodos químicos. Dentre eles, filantuosídeos A e B são dois glicosídeos fenólicos raros, com um esqueleto C6-C3-C6. A configuração absoluta dos filantuosídeos A e B foi estabelecida por dicroísmo circular elétrico calculado (ECD) usando teoria do funcional da densidade e a sua abordagem dependente do tempo (TDDFT). Os compostos isolados também tiveram sua citotoxicidade e atividade antimicrobial testadas.

Details

Language :
English
Database :
OpenAIRE
Journal :
Journal of the Brazilian Chemical Society, Volume: 25, Issue: 8, Pages: 1446-1454, Published: AUG 2014, Journal of the Brazilian Chemical Society v.25 n.8 2014, Journal of the Brazilian Chemical Society, Sociedade Brasileira de Química (SBQ), instacron:SBQ
Accession number :
edsair.dedup.wf.001..b2f53946505376952adf4ab016b4c12b