Two new flavanone glycosides from Macrothelypteris torresiana (Gaud.) Ching

来源 :Chinese Chemical Letters | 被引量 : 0次 | 上传用户:presk
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Two new flavanone glycosides 1 and 2 were isolated from the aerial parts oi Macrothelypteris torresiana(Gaud.)Ching.The structures of two products were identified as(2S)-5,7,2’,5’-tetrahydroxyfiavanone-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. Two new flavanone glycosides 1 and 2 were isolated from the aerial parts oi Macrothelypteris torresiana (Gaud.) Ching. The structures of two products were identified as (2S) -5,7,2 ’, 5’-tetrahydroxyfiavanone-2’-O O-acetylglucopyranoside and (2S) -5,7,2 ’, 5’-tetrahydroxyflavanone-2’-O-β-D-glucopyranoside on the basis of their chemical and spectral analysis, respectively .
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