The Journal of organic chemistry

Cytotoxic C-benzylated flavonoids from Uvaria chamae

WL Lasswell Jr, CD Hufford

文献索引：Lasswell,W.L.; Hufford,C.D. Journal of Organic Chemistry, 1977 , vol. 42, # 8 p. 1295 - 1302

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被引用次数: 58

摘要

in methanol for 24 h. The filtrate and washes were evaporated to dryness: yield 77 mg, 36% by weight; 127 wmol Val, 7.7 pmol Gly (yield 32%). Total 14C counts recovered in the filtrate indicated a yield of 36%. The solid was recrystallized from ether-petroleum ether. Paper electrophoresis at pH 1.5 gave a single radioactive spot at Rval 0.48 (standards of Gly-Val, Asp, and cyclic Dca-Val appeared at 0.86, 0.74, and 0.66, respectively);'H NMR (Varian ...