ABSTRACT
We have carried out the investigation on a sponge-derived fungus,which was identified as Emericella variecolor from the south sea of China. Two new chemical constituents,(+)-2-acetyl-dihydroterrein (1) and (+)-3-acetyl-dihydroterrein (2),with four known compounds,anditomin (3),andilesin A (4),andilesin C (5) and andilesin B (6),were isolated from this fungus by column chromatography over silica gel, Sephadex LH-20, and ODS. The structures of 1 and 2 were elucidated by spectroscopic methods including NMR,HR-ESI-MS,and CD.
ABSTRACT
<p><b>OBJECTIVE</b>To discriminate and determine of the artificial bear bile of the compound bile capsule.</p><p><b>METHOD</b>Taking the pharmacopoeia as reference, the artificial bear bile was discriminated and determined by HPLC.</p><p><b>RESULT</b>The compound bile capsule and the control sample had chromatographic peak at the same time from HPLC. The content of the artificial bear bile was above 10 mg per tablets.</p><p><b>CONCLUSION</b>The artificial bear bile of compound bile capsules can be discriminated effectively and determined accurately by HPLC method.</p>