Curviflorside and curviflorin, new naphthalene glycoside and flavanol from Plicosepalus curviflorus

Author:

Al Musayeib Nawal M.1,Ibrahim Sabrin R.M.23,Amina Musarat4,Al Hamoud Gadah A.4,Mohamed Gamal A.56

Affiliation:

1. Department of Pharmacognosy, College of Pharmacy, King Saud University , Riyadh 11451, Saudi Arabia , Phone: +966 598566807, E-mail:

2. Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy, Taibah University , Al Madinah Al Munawwarah 30078, Saudi Arabia , Phone: +966 581183034, E-mail:

3. Department of Pharmacognosy, Faculty of Pharmacy, Assiut University , Assiut 71526, Egypt

4. Department of Pharmacognosy, College of Pharmacy, King Saud University , Riyadh 11451, Saudi Arabia

5. Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University , Jeddah 21589, Saudi Arabia

6. Department of Pharmacognosy, Faculty of pharmacy, Al-Azhar University, Assiut Branch , Assiut 71524, Egypt

Abstract

Abstract The naphthalene glycosidecurviflorside [1,5-dihydroxy-8-methoxynaphthalene-2-O-β-D-xylopyranoside] (3) and the flavanol curviflorin [(+)-catechin-7-O-3″,4″-dihydroxybenzoate] (4), along with two known flavonoids: (+)-catechin (1) and quercetin (2) were isolated from the shoots of Plicosepalu scurviflorus Benth. (Loranthaceae) growing in Saudi Arabia and the chemical structures were elucidated by 2D-NMR spectroscopy.

Publisher

Walter de Gruyter GmbH

Subject

General Biochemistry, Genetics and Molecular Biology

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