A novel flavonoid was isolated from the root of Macrothelypteris torresiana （Gaud.） Ching. The structure of the product was identified as 5, 7-dihydroxy-2-（1, 2-isopropyldioxy-4-oxocyclohex-5-enyl）-chromen-4-one o...A novel flavonoid was isolated from the root of Macrothelypteris torresiana （Gaud.） Ching. The structure of the product was identified as 5, 7-dihydroxy-2-（1, 2-isopropyldioxy-4-oxocyclohex-5-enyl）-chromen-4-one on the ground of chemical and spectro-scopic methods.2009 Jin Lan Ruan. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.展开更多
Two new flavanone glycosides 1 and 2 were isolated from the aerial parts of Macrothelypteris torresiana （Gaud.） Ching. The structures of two products were identified as （2S）-5,7,2＇,5＇-tetrahydroxyflavanone-2＇-O...Two new flavanone glycosides 1 and 2 were isolated from the aerial parts of Macrothelypteris torresiana （Gaud.） Ching. The structures of two products were identified as （2S）-5,7,2＇,5＇-tetrahydroxyflavanone-2＇-O-β-D-6＂-O-acetylglucopyranoside and （2S）- 5,7,2＇,5＇-tetrahydroxyflavanone-2＇-O-β-D-glucopyranoside on the basis of their chemical and spectral analysis, respectively.展开更多
文摘A novel flavonoid was isolated from the root of Macrothelypteris torresiana （Gaud.） Ching. The structure of the product was identified as 5, 7-dihydroxy-2-（1, 2-isopropyldioxy-4-oxocyclohex-5-enyl）-chromen-4-one on the ground of chemical and spectro-scopic methods.2009 Jin Lan Ruan. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
文摘Two new flavanone glycosides 1 and 2 were isolated from the aerial parts of Macrothelypteris torresiana （Gaud.） Ching. The structures of two products were identified as （2S）-5,7,2＇,5＇-tetrahydroxyflavanone-2＇-O-β-D-6＂-O-acetylglucopyranoside and （2S）- 5,7,2＇,5＇-tetrahydroxyflavanone-2＇-O-β-D-glucopyranoside on the basis of their chemical and spectral analysis, respectively.
