摘要:
This invention is directed generally to a process for making a-substituted hydroxamic acids (including salts thereof) generally corresponding in structure to formula (I) wherein n, Z, Z
摘要:
A novel crystalline form (Form L) of the aldosterone receptor antagonist drug eplerenone is provided having relatively hich physical stability at normal temperatures of storage and use. Pharmaceutical compositions are also provided comprising Form L eplerenone, optionally accompanied by one or more other solid state forms of eplerenone, in a total unit dosage amount of eplerenone of about 10 to about 1000 mg, and further comprising one or more pharmaceutically acceptable excipients. Processes are provided for preparing Form L eplerenone and for preparing compositions comprising Form L eplerenone. A method for prophylaxis and/or treatment of an aldosterone-mediated condition or disorder is also provided, comprising administering to a subject a therapeutically effective amount of eplerenone, wherein at least a fraction of the eplerenone present is Form L eplerenone.
摘要:
A novel crystalline form (Form H) of the aldosterone receptor antagonist drug eplerenone is provided having a relatively rapid dissolution rate in aqueous media. Also provided are novel solvated crystalline forms of eplerenone that, when desolvated, can yield Form H eplerenone. Also provided is amorphous eplerenone. Pharmaceutical compositions are provided comprising Form H eplerenone, optionally accompanied by one or more other solid state forms of eplerenone, in a total unit dosage amount of eplerenone of about 10 to about 1000 mg, and further comprising one or more pharmaceutically acceptable excipients. Processes are provided for preparing Form H eplerenone and for preparing compositions comprising Form H eplerenone. A method for prophylaxis and/or treatment of an aldosterone-mediated condition or disorder is also provided, comprising administering to a subject a therapeutically effective amount of eplerenone, wherein at least a fraction of the eplerenone present is Form H eplerenone.
摘要:
This invention is directed generally to a process for making α-substituted hydroxamic acids (including salts thereof) generally corresponding in structure to formula (I) wherein n, Z, Z 3 , A, R, E, and Y are as defined in this patent. This invention also is directed to compounds that may, for example, be used as intermediates in such a process, as well as processes for making such compounds.
摘要:
A novel crystalline form (Form H) of the aldosterone receptor antagonist drug eplerenone is provided having a relatively rapid dissolution rate in aqueous media. Also provided are novel solvated crystalline forms of eplerenone that, when desolvated, can yield Form H eplerenone. Also provided is amorphous eplerenone. Pharmaceutical compositions are provided comprising Form H eplerenone, optionally accompanied by one or more other solid state forms of eplerenone, in a total unit dosage amount of eplerenone of about 10 to about 1000 mg, and further comprising one or more pharmaceutically acceptable excipients. Processes are provided for preparing Form H eplerenone and for preparing compositions comprising Form H eplerenone. A method for prophylaxis and/or treatment of an aldosterone-mediated condition or disorder is also provided, comprising administering to a subject a therapeutically effective amount of eplerenone, wherein at least a fraction of the eplerenone present is Form H eplerenone.
摘要:
A novel crystalline form (Form H) of the aldosterone receptor antagonist drug eplerenone is provided having a relatively rapid dissolution rate in aqueous media. Also provided are novel solvated crystalline forms of eplerenone that, when desolvated, can yield Form H eplerenone. Also provided is amorphous eplerenone. Pharmaceutical compositions are provided comprising Form H eplerenone, optionally accompanied by one or more other solid state forms of eplerenone, in a total unit dosage amount of eplerenone of about 10 to about 1000 mg, and further comprising one or more pharmaceutically acceptable excipients. Processes are provided for preparing Form H eplerenone and for preparing compositions comprising Form H eplerenone. A method for prophylaxis and/or treatment of an aldosterone-mediated condition or disorder is also provided, comprising administering to a subject a therapeutically effective amount of eplerenone, wherein at least a fraction of the eplerenone present is Form H eplerenone.
摘要:
The present invention relates to a novel process for the preparation of ethyl 3S-[[4-[[4-(aminoiminomethyl)-phenyl]amino]-1,4-dioxobutyl]amino]-4-pentynoate and pharmaceutically acceptable acid addition salt thereof which comprises treating (trimethylsilyl)acetylene sequentially with n-butyllitium and 4-formylmorpholine followed by acid hydrolysis to give 3-(trimethylsilyl)-2-propynal; treating 3-(trimethylsilyl)-2-propynal with lithium bis(trimethylsilyl)amide to give in situ N,3-bis(trimethylsilyl)-2-propyn-1-imine; condensation of N,3-bis(trimethylsilyl)-2-propyn-1-imine with lithium t-butyl acetate to give (+/-)1,1-dimethylethyl 3-amino-5-(trimethylsilyl)-4-pentynoate; treating (+/-)1,1-dimethylethyl 3-amino-5-(trimethylsilyl)-4-pentynoate- with p-toluenesulfonic acid to give (+/-)1,1-dimethylethyl 3-amin-5-(trimethylsilyl)-4-pentynoate, mono p-toluenesulfonic acid salt, treatment of resulting salt with ethanol in the presence of p-toluenesulfonic acid to give (+/-)ethyl 3-amino-5-(trimethylsilyl)-4-pentynoate; desilylation of (+/-)ethyl 3-amino-5-(trimethylsilyl)-4-pentynoate to give in situ (+/-)ethyl 3-amino-4-pentynoate; resolution of (+/-)ethyl 3-amino-4-pentynoate using (R)-(-)-mandelic acid and treatment of the resolved product with gaseous hydrochloric acid to give ethyl 3S-amino-4-pentynoate, monohydrochloride; coupling the ethyl 3S-amino-4-pentynoate, monohydrochloride to 4-[[4-(aminoiminomethyl)phenyl]amino]-4-oxobutanoic acid, monohydrochloride in the presence of isobutyl chloroformate and N-methylmorpholine to give ethyl 3S-[[4-[[4-(aminoiminomehtyl)phenyl]amino]-1,4-dioxobutyl]amino]-4-pentynoate, monohydrochloride.