作者: Denise Parisot , Michel Devys , Michel Barbier
DOI: 10.1016/0031-9422(88)80712-X
关键词:
摘要: … was adjusted to 1.5 1 with H,O (final pH 5.5). The aq. extract was coned to 1 1 in uacuo and … phase was acidified to pH 3 with HOAc and re-extracted with 3 x 1 1 of EtOAc. The solvent …