摘要:
Disclosed are chromene derivatives represented by the following formula: ##STR1## wherein R.sup.1 s represent alkyl, alkoxy or like groups, R.sup.2 represents a hydrogen atom or an alkyl group, R.sup.3 represents a substituted or unsubstituted phenyl, naphthyl or heterocyclic group, and m stands for an integer of from 0 to 4, and their salts; and pharmaceuticals containing them as effective ingredients. The chromene derivatives and their salts show excellent AGE formation inhibitory action and are useful as preventives and therapeutics for diabetic complications.
摘要:
Chromans of formula I ##STR1## with the meanings of R(A), R(B) and R(1) to R(8) stated in the specification are suitable for producing a medicament for blocking the K.sup.+ channel that is opened by cyclic adenosine monophosphate (cAMP); also for producing medicaments for inhibiting gastric acid secretion; for the treatment of ulcers of the stomach and the intestinal region, in particular the duodenum, for the treatment of reflux esophagitis, for the treatment of diarrheal disorders, for the treatment and prevention of all types of arrhythmias, including atrial, ventricular and supraventricular arrhythmias, for controlling reentry arrhythmias and for preventing sudden heart death as a result of ventricular fibrillation.
摘要:
Certain benzopyran antiestrogens are disclosed for treating estrogen sensitive diseases such as breast cancer. Prodrug forms provide ease of manufacturing, good shelf life, and bioavailability, and preferred stereoisomers are shown to be more effective than racemic mixtures.
摘要:
Inhibitors of sex steroid activity, for example those having the general structure ##STR1## may be used as part of a pharmaceutical composition to provide antiestrogenic effects and/or to suppress estrogen synthesis. Such pharmaceutical compositions are useful for the treatment of breast cancer or other diseases whose progress is aided by activation of sex steroid receptors.
摘要:
Substituted chromanylsulfonyl(thio)ureas, processes for their preparation, their use in pharmaceutical preparations, and pharmaceutical preparations comprising them Chromanylsulfonyl(thio)ureas of the formula I ##STR1## are useful pharmaceuticals for the treatment of cardiac arrhythmias and for the prevention of sudden heart death due to arrhythmia. They can be used as antiarrhythmics and are suitable for the prevention of sudden heart death, for the treatment of cardiac insufficiency and also heart failure as a result of the effects of shock.
摘要:
An aryl ester compound composed of a polyhydric phenol in which at least one OH group has been esterified with an organic acid or its derivatives having 1 to 20 carbon atoms, said polyhydric phenol being the condensation product of a phenolic compound represented by the general formula: ##STR1## with a carbonyl compound represented by the general formula: ##STR2## which aryl ester compound can give, when used as a curing agent for an epoxy resin, a cured product having a low dielectric constant and a low dielectric loss tangent; an epoxy resin composition comprising as the essential components an epoxy resin, said aryl ester compound and a cure accelerator; and a copper-clad laminate using the epoxy resin composition. The copper-clad laminate has a low dielectric constant and a low dielectric loss tangent and is excellent in adhesiveness as compared with conventional ones, and hence, is suitable for multilayer printed wiring board for high speed operation, especially at high-frequency region.
摘要:
There are disclosed novel tannins, lipase inhibitors containing the same as active constituent and a method for producing the same, wherein said tannins have the formula: ##STR1## wherein n is 2 or an integer more than 2.
摘要:
Methods and pharmaceutical compositions for use in inhibiting calmodulin activity in a patient are disclosed. 2,3-diaryl-1-benzopyrans and their pharmaceutically acceptable salts are formulated into medicaments, including oral and topical medicaments, which are administered to a patient in need of treatment of a non-estrogen dependent condition.
摘要:
A process for preparing compounds of the formula ##STR1## where a, b d, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined herein including condensation of a phenol of formula ##STR2## with an acetal of formula ##STR3## in the presence of a catalytic amount of a tertiary amine. The compounds of formula I are intermediates useful in the preparation of pyranyl cyanoguanidine derivatives.
摘要:
This invention provides bicyclic heterocyclic derivatives and their pharmaceutically acceptable salts useful for the treatment of hypertension, urethral and lower urinary tract contractions, and other disorders. The compounds are also useful for binding .alpha..sub.1 -adrenergic and 5HT.sub.1A serotonergic receptors, in vitro or in vivo.