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Extração e estrutura cristalina da fisalina B

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Book Details
Language
Portuguese
Publishers
Edições Nosso Conhecimento (20 Feb. 2024)
Weight
0.1 KG
Publication Date
20/02/2024
ISBN-10
620717979X
Pages
60 pages
ISBN-13
9786207179794
Dimensions
15 x 0.36 x 22 cm
SKU
9786207179794
Author Name
Yan-jun Yang (Author)
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A fisalina B (C28H32O9), uma das principais fisalinas activas da Physalis angulata L, foi isolada da planta inteira da Physalis angulata L e caracterizada por análise de difração de raios X. Cristaliza no sistema monoclínico, grupo espacial P2(1) com C28H32O9, a = 12.

4996(2), b = 14. 35620(10), c = 14.

75190(10)Å, V = 2607. 97(5)Å3, Z = 4,Dc = 1.

382mg/cm3, Mr = 542. 56, F(000) = 1152, e μ= 0.

870 mm-1. O R final = 0,0389 e wR = 0,1037 para 47670 reflexões observadas (I > 2ο(I)).

A molécula rígida é constituída por oito anéis fundidos envolvendo duas lactonas. Existem duas moléculas de C28H32O9 numa unidade simétrica, e o composto do título é empilhado numa estrutura de camada 3D através de ligações de hidrogénio.

Na gama de 5-20μmol/L, a fisalina B pode inibir significativamente a secreção de citocinas inflamatórias TNF-α e IL-6 em células RAW264. 7.

Os resultados sugerem que a fisalina B tem atividade anti-inflamatória in vitro. .

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