Abstract:
This invention relates to novel S-protected derivatives of an orally active inhibitor of an angiotensin-converting enzyme (ACE) and its analogues, which derivatives are useful for the reasons that they are (1) easily prepared from novel precursors, (2) resolvable to their optically purified stereoisomeric species and (3) convertible to non-derivatized stereoisomeric species which correspond to the pharmacologically active inhibitor and its analogues. Consequently, this invention also relates to the novel precursors. Novel methods for preparing the derivatives and their precursors are also noted herein. In addition, methods for converting the derivatives to the resolved de-derivatized stereoisomeric species of the ACE inhibitor and its analogues are described.
Abstract:
A method is disclosed for the preparation of optically pure isomes of formeterol, especially the (R,R)- and (S,S)-isomer, by the reaction of an optically pure 4-benzyloxy-3-formamidostyrene oxide with an optically pure 4-methoxy- alpha -methyl-N-(phenylmethyl)benzeneethanamine followed by debenzylation. Useful intermediates in the process are also disclosed, as is the novel L-tartrate salt of R,R-formoterol.
Abstract:
A method for treating gastrointestinal hyperactivity, irritable bowel syndrome and other motility disorders involving the gastrointestinal tract is disclosed. The method comprises administering a therapeutically effective amount of (S)-oxybutynin, (S)-desethyloxybutynin, or a pharmaceutically acceptable salt thereof, substantially free of the corresponding R enantiomer.
Abstract:
A method for treating urinary incontinence while avoiding concomitant liability of adverse effects associated with racemic oxybutynin is disclosed. The method comprises administering from 100 mg to 1 000 mg/day of (S)-oxybutynin, (S)-desethyloxybutynin or a pharmaceutically acceptable salt thereof, substantially free of the corresponding R enantiomer. Pharmaceutical compositions in the form of tablets, soft elastic gelatin capsules and transdermal devices comprising an acceptable carrier and up to 500 mg of (S)-oxybutynin or (S)-desethyloxybutynin are also disclosed.
Abstract:
A method for treating urinary incontinence, such as incontinence resulting from bladder detrusor muscle instability, using enantiomerically enriched (R)-tridihexethyl. The method comprises administering a therapeutically effective amount of enantiomerically enriched (R)-tridihexethyl or a pharmaceutically acceptable salt thereof, substantially free of the (S)-tridihexethyl enantiomer. Pharmaceutical compositions for the treatment of urinary incontinence comprising enantiomerically enriched (R)-tridihexethyl, or a pharmaceutically acceptable salt thereof, and an acceptable carrier are also disclosed.
Abstract:
Methods are disclosed utilizing DCL, a metabolic derivative of loratadine, for the treatment of allergic rhinitis, and other disorders, while avoiding the concomitant liability of adverse side-effects associated with other non-sedating antihistamines.
Abstract:
Methods and compositions are disclosed utilizing the optically pure S-isomers of terodiline or of the hydroxylated derivatives of terodiline. These compounds are potent drugs for the treatment of urinary incontinence, obstructive pulmonary disease and such other conditions as are related to the compounds' activity as anticholinergic agents. Furthermore, the optically pure S-isomers of terodiline or of the hydroxylated derivatives of terodiline are useful for the treatment of angina and such other conditions as may be related to the compounds' activity as calcium antagonists.
Abstract:
Methods and compositions are disclosed uitlizing the optically pure (2S, 4R) isomer of itraconazole. This compound is a potent drug for the treatment of local and systemic fungal, yeast, and dermatophyte infections, while avoiding the concomitant liability of adverse effects associated with the racemic mixture of itraconazole.
Abstract:
Methods and compositions are disclosed utilizing the optically pure (+) isomer of doxazosin. This compound is a potent drug for the treatment of hypertension while avoiding the concomitant liability of adverse effects associated with the racemic mixture of doxazosin.
Abstract:
Methods and compositions are disclosed utilizing the optically pure (-) isomer of doxazosin. This compound is a potent drug for the treatment of hypertension while avoiding the concomitant liability of adverse effects associated with the racemic mixture of doxazosin.