id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
bjp-42414	Kim, Dang Dinh; Nguyet, Vu Thi; Anh, Ha Xuan; Trang, Nguyen Thi Thu; Chuyen, Nguyen Hong; Huong, Le Mai; Ha, Tran Thi Hong; Ho, Do Hai; Dat, Nguyen Tien	Cytotoxic phenolic constituents from the leaves of Ehretia asperula	2019	3	.pdf	application/pdf	1482	62	60	Fraction F3 was subjected to fractionation over silica gel column, eluted with dichloromethane-acetone (10/1, v/v) to give three subfractions F3.1-F3.3. Subfraction F3.1 was separated using silica gel column and further purified with C18 column to yield methyl rosmarinate (6) (3.2 mg), oresbiusin B (7) (8.1 mg) and dimethyl lithospermate (8) (100 mg).	cache/bjp-42414.pdf	txt/bjp-42414.txt