摘要:
An agent for treating or ameliorating diabetic complications which contains at least one potassium channel activator as an active ingredient. The drug is expected to show a therapeutic or ameliorating action on diabetic complications such as retinopathy, neuropathy, nephropathy, peripheral circulation disorders, and skin ulcerations; it also proves effective in preventing, ameliorating, alleviating and gaining recovery from various symptoms and abnormalities caused by those diseases, as exemplified by blindness, proteinurea, pain, numbness, psychroesthesia, intermittent claudication and gangrene.
摘要:
Described herein are benzopyran derivatives represented by the formula: ##STR1## wherein R, X and Y represent any of the following combinations:______________________________________ R X Y ______________________________________ C.sub.2 F.sub.5 O H C.sub.2 F.sub.5 S H CF.sub.3 S F C.sub.2 F.sub.5 S F C.sub.3 F.sub.7 S F ______________________________________ and pharmaceutically acceptable salts thereof. These compounds have an excellent potassium channel activity and are also excellent from the aspect of safety.
摘要:
Novel benzopyran and benzoxazine derivatives represented by the general formula: ##STR1## wherein R.sub.1 and R.sub.2 represent a lower haloalkyl group, R.sub.3 represents a hydrogen atom, etc., R.sub.4 represents a heterocyclic group or A--O-- wherein A represents a cyclic structure, etc., R.sub.5 and R.sub.6 represent a lower haloalkyl, X represents .dbd.N--, N.fwdarw.O, etc, are disclosed. These compounds exhibit K.sup.+ channel opening activating and can be widely used as an anti-asthma drug, an anti-epilepsy drug, etc.
摘要:
Benzopyran derivatives represented by formula (I): ##STR1## wherein X represents =O, =S, =N-Z (Z represents a lower alkyl group, etc.), or =CHNO.sub.2 ; Y represents a substituted amino group, an alkoxy group, an alkylthio group, etc., and R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, and R.sub.7 each represent a hydrogen atom, a lower alkyl group, etc., are disclosed. The benzopyran derivatives exhibit K.sup.+ channel activating activities and are widely applicable as antiasthmatics, antiepileptics, and the like.
摘要:
Xanthone derivatives of the formula (I): ##STR1## wherein W, X, Y and Z which may be the same or different represent a hydrogen atom, a halogen atom or a lower alkyl group having 1 to 4 carbon atoms; A is a hydrogen atom B is a hydroxymethyl group, a lower alkoxycarbonyl group having 1 to 4 carbon atoms, or a carboxyl group, provided that a --O--CH.sub.2 --B group is bonded to the 2- or 3-position of the xanthone ring and that there is no case in which X, Y, and Z are each a hydrogen atom concurrently; as well as intoxic salts thereof when B is a carboxyl group, and a process for preparing the same are disclosed.The compounds of formula (I) in accordance with the present invention are useful as diuretics having uricosuric activity and can be used in the treatment of edema or hypertension.
摘要:
Novel furobenzisoxazole derivatives of the formula (I): ##STR1## (wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 which may be the same or different represent a hydrogen atom, a halogen atom, or a lower alkyl group having 1-4 carbon atoms; R.sub.5 is a hydroxymethyl group, a carboxyl group or a lower alkoxy carbonyl group having 1-3 carbon atoms; and X is a sulfur atom or a --CH.dbd.CH-- group), as well as intoxic salts thereof when R.sub.5 is a carboxyl group, and process for preparing the same are disclosed.The derivatives of formula (I) and nontoxic salts thereof have hypotensive, uricosuric and diuretic activities and hence ae useful as therapeutics for treating hyperuricemia, edema and hypertension.
摘要:
A swash plate type compressor having shoes provided with center holes on the slidable surfaces. The center hole provided with a bottom acts as a reservoir for lubricating oil and supplys the oil on the slidable surface of the shoe, which slides against the swash plate. There can be a second ring groove concentric to the center hole, or annexed grooves which are stretching outward radially from the center hole. The center hole also prevents the center part from protruding outward by thermal expansion, which is caused by friction. The slidable surface of the shoe is preferably coated with a layer containing solid lubricant so as to smooth the sliding motions.