The synthetic route of 3’-amino carboxylate hydrochloride of quercetin is improved.Using benzyl bromide to partly protect the hydroxyl groups,the protected quercetin then react with a series of Boc protected amino ac...The synthetic route of 3’-amino carboxylate hydrochloride of quercetin is improved.Using benzyl bromide to partly protect the hydroxyl groups,the protected quercetin then react with a series of Boc protected amino acids to afford the 3’-amino carboxylate,hydrogenised and treated with HCl(g),a series of 3’-amino carboxylate hydrochloride of quercetin are synthesized in good yields.The structures of these compounds are confirmed by means of their m.p.,mass spectra and 1H NMR.展开更多
文摘The synthetic route of 3’-amino carboxylate hydrochloride of quercetin is improved.Using benzyl bromide to partly protect the hydroxyl groups,the protected quercetin then react with a series of Boc protected amino acids to afford the 3’-amino carboxylate,hydrogenised and treated with HCl(g),a series of 3’-amino carboxylate hydrochloride of quercetin are synthesized in good yields.The structures of these compounds are confirmed by means of their m.p.,mass spectra and 1H NMR.
