Efficient synthetic method for ethyl (+)-(2S,3S)-3-((S)-3-methyl-1-(3-methylbutylcarbamoyl)butylcarbamoyl)-2-oxiranecarboxylate (EST), a new inhibitor of cysteine proteinases.
An Improved Preparation of the Activity-Based Probe JPM-OEt and In Situ Applications
作者:Matthew Bogyo、Kareem A. Chehade、Amos Baruch、Steven H. Verhelst
DOI:10.1055/s-2004-837295
日期:——
A short, stereoselective synthesis of the general, cell permeable cathepsin probe JPM-OEt, is presented. The synthetic route is improved and described in more detail than previous reports for related compounds. This serves as a facile method for the synthesis of multi-gram quantities of activity-based probes utilizing an epoxide-succinyl scaffold. Additionally, JPM-OEt is shown to be cell permeable, allowing in vivo characterization of cysteine proteases. More importantly, this reagent has recently been shown to be an effective general inhibitor of papain family cysteine proteases in animal models of cancer. For this reason the outlined synthesis method will enable future in vivo studies using this reagent.
Caging the uncageable: using metal complex release for photochemical control over irreversible inhibition
作者:Matthew Huisman、Jessica K. White、Veronica G. Lewalski、Izabela Podgorski、Claudia Turro、Jeremy J. Kodanko
DOI:10.1039/c6cc07083c
日期:——
Light provides control over irreversible inhibition with Ru(ii)-caged epoxysuccinyl compounds and release of a Ru(ii) complex from a protein–inhibitor conjugate.
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.
[EN] COMPOSITIONS AND METHODS FOR SYNTHESIZING (2S,3S)-TRANS-EPOXYSUCCINYL-L-LEUCYL-AMIDO-3-METHYLBUTANE ETHYL ESTER<br/>[FR] COMPOSITIONS ET PROCÉDÉS DE SYNTHÈSE DE L'ESTER ÉTHYLIQUE DE (2S,3S)-TRANS-ÉPOXYSUCCINYL-L-LEUCYL-AMIDO-3-MÉTHYLBUTANE
申请人:AMERICAN LIFE SCIENCE PHARMACEUTICALS INC
公开号:WO2015117094A1
公开(公告)日:2015-08-06
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.
EPOXYSUCCINAMIDE DERIVATIVES OR SALTS THEREOF, AND DRUGS CONTAINING THE SAME
申请人:TAIHO PHARMACEUTICAL CO., LTD.
公开号:EP0808839A1
公开(公告)日:1997-11-26
The invention relates an epoxysuccinamide derivative represented by the general formula (1)
wherein R1 and R2 are the same or different from each other and independently represent H or an aromatic hydrocarbon group or aralkyl group which may be substituted, or R1 and R2 may form a nitrogen-containing heterocyclic ring together with the adjacent nitrogen atoms, R3 is H or an acyl group, R4 is H or an aralkyl group, and R5 is an aromatic hydrocarbon group or aralkyl group which may be substituted, or R5 may form an amino acid residue, which may be protected, together with the adjacent nitrogen atom, or a salt thereof, and a medicine comprising the derivative as an active ingredient.
This compound has an inhibiting activity against cathepsin, and particularly, specifically inhibits cathepsin L and is hence useful for prevention and treatment of osteopathy such as osteoporosis.
本发明涉及一种由通式(1)表示的环氧琥珀酰胺衍生物
其中 R1 和 R2 彼此相同或不同,并独立地代表 H 或可被取代的芳香烃基或芳基,或 R1 和 R2 可与相邻的氮原子一起形成含氮杂环,R3 为 H 或酰基,R4 为 H 或芳基,R5 为可被取代的芳香烃基或芳基,或 R5 可与相邻的氮原子一起形成可被保护的氨基酸残基,或其盐,以及包含该衍生物作为活性成分的药物。
该化合物具有抑制酪蛋白酶的活性,特别是对酪蛋白酶 L 有特异性抑制作用,因此可用于预防和治疗骨质疏松症等骨病。