Serendipitous Discovery of a Zidovudine Guanidine Complex: A Superior Process for the Production of Zidovudine
摘要:
A superior process for the commercial production of zidovudine (AZT) has been developed. It was discovered that an AZT-guanidine complex formed when a crude zidovudine solution was treated with guanidine. This readily precipitated from protic solvents resulting in the exclusion of impurities and permitted the development of a superior isolation and purification of AZT.
DOI:
10.1021/op2000805
作为产物:
描述:
盐酸胍 、 AZT-sodium 以
水 为溶剂,
以58.76 g的产率得到AZT guanidine salt
参考文献:
名称:
Serendipitous Discovery of a Zidovudine Guanidine Complex: A Superior Process for the Production of Zidovudine
摘要:
A superior process for the commercial production of zidovudine (AZT) has been developed. It was discovered that an AZT-guanidine complex formed when a crude zidovudine solution was treated with guanidine. This readily precipitated from protic solvents resulting in the exclusion of impurities and permitted the development of a superior isolation and purification of AZT.
A process for recovering 3'-azido-3'-deoxythymidine (AZT) or a salt thereof from a mixture of chemicals involving the reaction of the AZT with guanidine to form a salt precipitate. The salt precipitate is then acidified to pH of less than about 9 to yield free AZT, which can then be crystallized from solution. 3'-Azido-3'-deoxythymidine and its salts, also known as AZT and Zidovudine, is used in the treatment of AIDS patients.
A composition of a 1:1 molar complex of guanidine and 3'-azido-3'-deoxythymidine (AZT) which is generated at about pH above 9 and disrupted by pH below about 9. This complex is a useful intermediate in the purification of AZT.