COMPOSITIONS AND METHODS FOR SYNTHESIZING (2S,3S)-TRANS-EPOXYSUCCINYL-L-LEUCYL-AMIDO-3-METHYLBUTANE ETHYL ESTER
申请人:AMERICAN LIFE SCIENCE PHARMACEUTICALS, INC.
公开号:US20170166543A1
公开(公告)日:2017-06-15
In alternative embodiments the invention provides methods for synthesizing AB-007 (also called loxistatin, E64d, EST or ((2S,3S)-trans-epoxysuccinyl-L-leucyl-amido-3-methylbutane ethyl ester) and its acid form E64c (loxistatin acid), and various synthetic intermediates, and deuterated forms of these compounds, and stereoisomers thereof. In alternative embodiments the invention provides a tosylate salt of AB-007-4 or a tosylate salt of L-leucine isoamylamine, or equivalents thereof. A synthetic scheme of the invention provides kilogram quantities of AB-007 manufactured according to current good manufacturing practices (cGMP's), consistent with US FDA requirements for human use. In alternative embodiments the invention provides a tosylate salt of AB-007-4 or a tosylate salt of L-leucine isoamylamine, or equivalents thereof.
在另一种实施方案中,本发明提供了合成AB-007(也称为loxistatin、E64d、EST或((2S,3S)-trans-epoxysuccinyl-L-leucyl-amido-3-methylbutane ethyl ester)及其酸性形式E64c(loxistatin acid)以及各种合成中间体,以及这些化合物的氘代形式和立体异构体的方法。在另一种实施方案中,本发明提供AB-007-4的对甲苯磺酸盐或L-亮氨基异戊胺的对甲苯磺酸盐,或它们的等效物。本发明的合成方案提供了按照当前良好制造规范(cGMP)制造的千克级AB-007,符合美国FDA对人类使用的要求。在另一种实施方案中,本发明提供AB-007-4的对甲苯磺酸盐或L-亮氨基异戊胺的对甲苯磺酸盐,或它们的等效物。