USE OF HYDROXYBENZOIC ACIDS AND THEIR ESTERS AND ANALOGUES FOR PREVENTING OR TREATING VIRUS INFECTION
申请人:QIN Weihua
公开号:US20080119550A1
公开(公告)日:2008-05-22
This invention provides hydroxybenzoic acids, their esters and analogues thereof that are useful for the prevention and/or treatment of virus infection such as HBV, papillomavirus and/or herpes virus infection.
Catechuic acid and ethyl 2,4,5-trihydroxybenzoate from d-glucose
作者:Namdeo N. Bhujbal、Omprakash P. Bande、Dilip D. Dhavale
DOI:10.1016/j.carres.2009.02.002
日期:2009.4
Synthesis of catechuicacid (1) and ethyl 2,4,5-trihydroxybenzoate (2) from D-glucose-derived beta-ketoester is described. The polyhydroxylated beta-ketoester obtained from the hydrolysis of sugar beta-ketoester 3 was subjected to an aldol-type condensation to get 4 that on enolization, dehydration, and hydrogenation afforded ethyl 2,4,5-trihydroxybenzoate (2). On the other hand, hydrogenation of aldol