作者:Jernej Wagger、Aljaž Požes、Franc Požgan
DOI:10.1039/c3ra43417f
日期:——
For the use of analytics, European pharmacopoeial impurities A, B, C, and D of cabergoline were synthesized. Ergocryptine was chosen as a starting material and synthesis was accomplished via two approaches, different in length and stereochemical outcome. A longer, indirect approach was realized through otherwise problematic oxidations of the 9,10-dihidrolysergol derivative, to the corresponding aldehyde and carboxylic acid. This was achieved by the use of activated DMSO and a Pinnick oxidation sequence. All four synthesized impurities are used as analytical standards in cabergoline manufacturing processes.
为了使用分析技术,合成了欧洲药典中提到的卡贝缩脲的杂质A、B、C和D。选择了麦角隐碱作为起始材料,合成通过两种不同的途径完成,长度和立体化学结果各异。较长的间接途径通过对9,10-二氢麦角酰的衍生物进行问题较多的氧化反应,得到相应的醛和羧酸。通过使用活化的DMSO和Pinnick氧化序列实现了这一过程。所有四种合成的杂质均用于卡贝缩脲生产过程中作为分析标准。