Four flavonoid ketohexosefuranosides, pinnatifinoside A, pinnatifinoside B,
pinnatifinoside C, and pinnatifinoside D were isolated from the leaves of
Crataegus pinnatifida Bge. var. major N.E.Br. Their structures were elucida
ted by spectroscopic analysis (UV, IR, MS and 1D, 2D NMR) and chemical evid
ence. (C) 2001 Elsevier Science Ltd. All rights reserved.