发明名称 |
Methods for synthesizing and purifying aminoalkyl tetracycline compounds |
摘要 |
Methods for the synthesis and purification of 9-amino alkyl tetracycline compounds are described. |
申请公布号 |
US8946196(B2) |
申请公布日期 |
2015.02.03 |
申请号 |
US201314041593 |
申请日期 |
2013.09.30 |
申请人 |
Paratek Pharmaceuticals, Inc. |
发明人 |
Johnston Sean M.;Warchol Tadeusz |
分类号 |
C07C231/12;C07C231/24 |
主分类号 |
C07C231/12 |
代理机构 |
McCarter & English, LLP |
代理人 |
McCarter & English, LLP ;Hanley Elizabeth A. |
主权项 |
1. A method of purifying an alkylaminomethyl minocycline compound, comprising:
a) injecting a low pH aqueous solution of said alkylaminomethyl minocycline compound into a liquid chromatography device in a polar organic solvent gradient, and combining the product fractions; b) adjusting the pH of said product fractions to 4.0-4.5; c) washing said product fractions with a first non-polar organic solvent to form a first organic layer and a first aqueous layer, and discarding said first organic layer; d) adjusting the pH of said first aqueous layer to 7.5-8.5; and e) washing said first aqueous layer with a second non-polar organic solvent to form a second organic layer and a second aqueous layer, and discarding said second aqueous layer, such that said alkylaminomethyl minocycline compound is purified. |
地址 |
Boston MA US |