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Records of Natural Products
Yazarlar: Ghias Uddin, Muhammad Alam, Bina S. Siddiqui, Nizam Uddin, Anwar Sadat, Ashfaq Ahmad Khan Naveed Muhammad
Konular:-
Anahtar Kelimeler:Viburnum grandiflorum,G randinoid
Özet: In the present study a new flavoniod 1 along with Betulin 2 Betulinic acid 3, Oleanolic acid 4 andUrsolic acid 5 were isolated from the aerial part of Viburnum grandiflorum Wall. ex DC as white amorphous powder from the chloroform fraction. On the bases of different modern spectroscopic techniques such as EIMS, UV, IR, NMR, HSQC, HMBC, COSY and NOESY the structure of compound 1 was elucidate as 6,7-bis (propenyloxy)-2-ethoxy-5-hydroxy-3-(4-methoxyphenyl)-4H-chromen-4-one (Grandinoid).