Photochemically promoted Diels-Alder reactions of 1, 4-diaryl-1-azabutadienes with2,3-dihydrofuran were achieved by using 2, 4, 6-triphenylpyrylium tetrafluorob
Two new saponins named davuricoside I (1) and davuricoside E (2) were isolated from the whole plants of Lysimachia davurica. Their structures were determined by
The interaction of cordycepin with calf thymus DNA was investigated at physiological pH with drug/DNA molar ratio of 8. The Raman spectroscopy results indicated