Abstract:
Novel mercapto-acylamino acids useful in the treatment of hypertension and combinations of mercapto-acylamino acids and atrial natriuretic peptides useful for treating hypertension are disclosed.
Abstract:
Compounds of forumla XII ##STR1## wherein R.sub.1 is hydrogen and R.sub.2 is phenyl or benzyl are useful as intermediates in the preparation of 1,2-dithiolane-3-pentanoic acid (D,L-thioctic acid) of formula IX ##STR2##
Abstract:
Novel asymmetric thioethers of the formula ##STR1## in which the general symbols have the following meanings: R.sup.0 represents hydrogen or C.sub.1-7 -alkanoyl,R.sup.1 represents C.sub.1-3 -alkyl which may be substituted by one or more halogen atoms having an atomic number of at most 17,R.sup.2 represents an aliphatic radical having from 5 to 15 carbon atoms,A represents ethylene, a single bond or vinylene,B.sup.1 represents C.sub.1-7 -alkylene or phenylene,B.sup.2 represents a single bond, ethylene or phenylene, andM represents an aromatic radical of the partial formula ##STR2## in which the symbols have the following meanings: R.sup.3 represents hydrogen or C.sub.1-4 -alkyl,X represents NH, O, S or if R.sup.4 represents hydrogen, a single bond,one of the symbols R.sup.4 and R.sup.5 represents hydrogen and the other represents the group --CO--R.sup.6, orR.sup.4 and R.sup.5 together represent the radical --CO--C(R.sup.6).dbd.C(R.sup.7)--or--CO--C(R.sup.7).dbd.C(R.sup.6)--orR.sup.4 R.sup.5, together with X, represent the radical --N.dbd.C(R.sup.8)--C(R.sup.6).dbd.CH--,in whichR.sup.6 represents --(CH.sub.2).sub.b --COOR.sup.3 (in which b=0 to 2)R.sup.7 represents hydrogen or C.sub.1-4 -alkyl andR.sup.8 represents hydrogen, methyl, mythoxy or halogen,and their salts are active as leucotriene antagonists since they eliminate the contractions of smooth muscles brought about by leucotrienes, and are therefore suitable for the treatment of allergic, especially asthmatic, conditions.
Abstract:
There is provided a method for enhancing the growth rate of meat-producing animals and/or improving the efficiency of feed utilization thereby, which involves, orally or parenterally, administering to said animals a growth-enhancing amount of a phenylethanolamine compound or the acid addition salt thereof.
Abstract:
Arylthioalkylphenylcarboxylic acids are provided which have the structure ##STR1## wherein Ar represents an aryl group including phenyl or naphthyl which may or may not include one or more substituents, A is ##STR2## R is hydrogen, alkali metal or lower alkyl, m is 0, 1, 2, or 3, n is 0, 1, or 2, p is 1 to 5, q, is 0, 1, 2, or 3, r is 0, 1, 2, or 3. These compounds are cardiovascular agents which exhibit thromboxane antagonist activity and thus are useful in the treatment of thrombotic disease.
Abstract:
A method of preparing a compound of the formula ##STR1## wherein R is alkyl, R.sub.1 is alkyl or aryl and X is halogen or nitro comprising reacting ##STR2## wherein R and X are as defined above with a mercaptan having the formula R-SH in the presence of an inorganic base, a phase transfer catalyst and a non-polar aprotic solvent.
Abstract:
Compounds of the formula I ##STR1## wherein R.sup.1 and R.sup.2 independently of one another are each tert-butyl, R.sup.3 is C.sub.1 -C.sub.20 -alkyl, or C.sub.2 -C.sub.20 -alkyl interrupted by --O-- or --S--, and n is the number 1 or 2, can be obtained, with a very high degree of yield and purity, by reaction of a phenol of the formula II ##STR2## with formaldehyde and a mercaptan of the formula IIIR.sup.3 OOC--C.sub.n H.sub.2n --SH (III)in the presence of catalytic amounts of a primary or secondary amine. Such compounds are stabilizers for organic materials.
Abstract:
The present invention provides novel derivatives of leukotrienes A and C which are useful in inhibiting the smooth muscle contracting effects of SRS-A; inhibiting platelet aggregation; and inhibiting the biosynthesis of thromboxane A.sub.2.
Abstract:
Processes for producing a (1.alpha., 4.alpha., 5.alpha.)-6,6-dimethyl-4-halo-substituted-methyl-3-oxabicyclo[3.1.0]hexan-2-one and its novel intermediates from known and inexpensive starting materials are described and exemplified.
Abstract:
Novel compounds are described having the formula ##STR1## wherein Z is ##STR2## R.sub.1 is hydrogen or a C.sub.1 -C.sub.4 lower alkyl; R.sub.2 is hydrogen, a C.sub.1 -C.sub.4 lower alkyl, hydroxy-R.sub.8 -, lower alkyl-R.sub.8 -, mercapto-R.sub.8 -, cyclohexyl, cyclopentyl, phenyl, phenyl-R.sub.8 -, indolyl-R.sub.8 -, carboxy-R.sub.8 -, amino-R.sub.8 - or carbamoyl-R.sub.8 -, wherein R.sub.8 - is a divalent C.sub.1 -C.sub.6 straight chain parafinic moiety; R.sub.3 is hydrogen or C.sub.1 -C.sub.4 lower alkyl; R.sub.4 is hydrogen, lower alkanoyl, benzoyl or phenyl-substituted-lower alkanoyl; R.sub.5 is hydrogen or a C.sub.1 -C.sub.4 lower alkyl; R.sub.1, R.sub.2 and R.sub.5 excluding tertiary butyl; ARYL is 1-naphthyl, 2-naphthyl, 4-chloro-1-naphthyl, 4-methoxy-1-naphthyl, 5,6,7,8-tetrahydro-1-naphthyl, 5,6,7,8-tetrahydro-2-naphthyl, 4-biphenylyl, 5-indanyl, 4-indanyl, phenyl, or substituted phenyl moieties having the formula ##STR3## wherein R.sub.6 is fluoro, chloro, bromo, trifluoromethyl, cyano, phenoxy, halophenoxy, phenylthio, halophenylthio, a C.sub.1 -C.sub.4 lower alkyl or a C.sub.1 -C.sub.4 lower alkoxy, and R.sub.7 is chloro, fluoro, bromo, a C.sub.1 -C.sub.4 lower alkyl or a C.sub.1 -C.sub.4 lower alkoxy; and where m is an integer of zero, one or two; including individual optically active isomers; racemic mixtures thereof; non-toxic pharmacologically-acceptable salts of the foregoing; and mixtures of the foregoing. Processes of preparing such compounds are also described. Such compounds are useful in ameliorating hypertension in mammals.