on analysis of beta-muricholic acid (3 alpha, 6 beta, 7 beta-trihydroxy-5 beta-cholan-24-oic acid) in biological samples by a method involving acid-catalyzed solvolysis of sulfate esters in acetone-methanol, followed by perchloric acid-catalyzed acetylation with acetic anhydride-acetic acid. These products have been identified by mass spectrometry and nuclear magnetic resonance as methyl 3-0,6-0-d
副产品是在分析
生物样品中的 β-鼠
胆酸(3 α、6 β、7 β-三羟基-5 β-胆烷-24-
油酸)时形成的,该方法涉及
硫酸酯在
丙酮中的酸催化溶剂分解-
甲醇,然后用
乙酸酐-
乙酸进行
高氯酸催化乙酰化。这些产品已通过质谱和核磁共振鉴定为甲基 3-0,6-0-diacetyl-7-0-(1-methyl-3-oxo-1-butenyl)- 和甲基 3-0,7- 0-diacetyl-6-0-(1-methyl-3-oxo-1-butenyl)-beta-muricholate,methyl 3-0, 6-0-diacetyl- 和methyl 3-0, 7-0-diacetyl-beta -muricholate 和甲基
二乙酰氧基-cholen-24-oate。