摘要:
Two processes are described for the preparation of the optically pure compounds of formula 1: ##STR1## in which R.sup.1 and R.sup.2 are e.g. alkyl, R.sup.3 and R.sup.4 are e.g. hydrogen and R.sup.5 is e.g. hydrogen. Both processes include, as key steps, the enantioselective hydrogenation of a C.dbd.C double bond and the regioselective formation of a dicarboxylic acid monoamide derivative. In one process a phenylitaconic acid derivative is asymmetrically hydrogenated to give an optically active (R)-benzylsuccinic acid which is then converted to a diester, said diester being converted to the monoamide compound of formula 1. In the second process, a phenylitaconic acid derivative is converted to its anhydride, and the anhydride is then converted to a monoamide which is then asymmetrically hydrogenated to give the compound of formula 1.
摘要:
Calcium antagonists of the formula ##STR1## with R(1), R(2), R(3) and R(4) being, inter alia, H, alkyl, alkoxy, halogen, in some cases phenyl; m being 1-4; n being 0-3; X being CH.sub.2, O, S, CO, CHOH or CR.sub.2, and R(5) being various groups containing nitrogen atoms, are described.They are obtained by reaction of compounds II which are likewise new and which contain in place of R(5) a leaving group Y (Cl, Br, I) with the appropriate (cyclic) amino compound.Another synthesis comprises reaction of the appropriate indolinone derivative IV which has a non-etherified hydroxyl group with a side chain which contains a terminal leaving group Z (Cl, Br, I) in the presence of a base.Furthermore, indolinone derivatives VI with an ether side chain with a terminal epoxide group can be reacted with (cyclic) amines to give compounds I.
摘要:
Benzothiazine derivatives of the formula I ##STR1## with (R(1), R(1)', R(1)", R(4) and R(4)' equal to hydrogen, alkyl, alkoxy, halogen, nitro, hydroxyl, acetamido or amino; R(2) equal to hydrogen, alkyl, alkenyl, phenyl; R(3) equal to hydrogen, alkyl, alkenyl, phenyl; R(5) equal to hydrogen or (C.sub.1 -C.sub.3)-alkyl; R(6) equal to one of the following groups, ##STR2## with R(7) and R(8) equal to hydrogen, alkyl, cycloalkyl, phenyl; R(9) equal to hydrogen, alkyl, phenyl, pyridyl, pyrimidinyl or benzoyl; R(10) equal to hydrogen, alkyl, phenyl; R(11) equal to hydrogen, hydroxyl, alkoxy or, together with R(12), a bond; and R(12) equal to hydrogen or, together with R(11), a bond; m equal to 1, 2, 3 or 4; n equal to 0 or 1; p equal to 0, 1, 2, 3 or 4, and X equal to oxygen or two hydrogen atoms, and salts of the compounds of the formula I with physiologically tolerated acids and a process for the preparation of compounds I, likewise a method of treatment of disturbances of the calcium balance of a human body are described.
摘要:
The invention relates to new comoounds having a cognition adjuvant action, to the use of ACE inhibitors as medicaments having a cognition adjuvant action, to agents containing them, and to the use thereof for the treatment and prophylaxis of cognitive dysfunctions.
摘要:
Compounds I ##STR1## in which R(1) and R(4) equal H, alkyl, alkoxy, Hal, CF.sub.3, NO.sub.2, OH, acetamido or amino;R(2) equals H, alk(en)yl or phenylalkyl (optionally substituted);R(3) equals H, (cyclo)alk(en)yl-(alkyl), phenyl or phenylalkyl (optionally substituted);A equal CHOH, CO, CH.dbd.CH, C.tbd.C, CH.sub.2, O or S;m equals 1 or 2;n equals 1 to 3;p equals 0 to 4;R(5) equals some amino groups, and their salts, exhibit excellent calcium-antagonistic activity.Processes for their preparation are described.
摘要:
The invention relates to compounds of the formula I ##STR1## in which R.sup.1, R.sup.2 and R.sup.4 represent optionally substituted aliphatic, alicyclic, alicyclic-aliphatic, aromatic, araliphatic, heteroaromatic or heteroaromatic-aliphatic radicals, with R.sup.2, if not already covered by the above-mentioned definitions, denoting the side-chain, which is protected if necessary, of a naturally occurring .alpha.-amino acid, R.sup.4 can additionally represent ##STR2## R.sup.3 denotes an optionally substituted aliphatic, alicyclic, aromatic or araliphatic radical, or R.sup.3 and R.sup.4 form, together with the atoms carrying them, a mono-, bi- or tricyclic heterocyclic ring system,agents containing these, and the use thereof as pharmaceuticals having a psychotropic action for the prophylaxis of disorders of the central nervous system, especially having a nootropic action for the treatment of cognitive dysfunctions.
摘要:
The invention relates to amino acid esters of the formula I ##STR1## in which n is 2 and R, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the meaning indicated in the description, to a process and intermediates for the preparation thereof, to agents containing them, and the use thereof.
摘要:
A description is given of compounds I ##STR1## with R(1) equal to H, alkyl, alkoxy, Hal, NO.sub.2, OH, acetamido or amino; R(2) equal to H, alk(en)yl or phenylalkyl; R(3) equal to H, (cyclo)alk(en)yl(alkyl), phenyl or phenylalkyl; R(4) equal to H, alkyl, alkoxy, Hal CF.sub.3, NO.sub.2, OH, acetamido or amino; A equal to --C.tbd.C-- or --CH.dbd.CH--; R(5) equal to various amines; m and n equal to 1-3; and their salts. Preparation processes are also described. Compounds I are excellent calcium agonists or calcium antagonists. They also act to regulate the blood glucose.
摘要:
Benzothiazinone derivatives I ##STR1## with R.sup.1 and R.sup.4 being H, alkyl, alkoxy, Hal, CF.sub.3, NO.sub.2, OH, acetamido or amino,R.sup.2 being H, (cyclo)alk(en)yl, cycloalkylakyl, phenyl or phenylalkyl,A being (CH.sub.2).sub.m O(CH.sub.2).sub.n, (CH.sub.2).sub.p --CH(OH)--CH.sub.2).sub.q, (CH.sub.2).sub.p --CH(OCH.sub.3)--(CH.sub.2).sub.q, or (CH.sub.2).sub.r OCH.sub.2 --CO-- and (CH.sub.2).sub.s --CO--,R.sup.5 being NR(6)R(7) or certain cyclic amines, show a calcium-antagonistic action.They are obtained, inter alia, from II ##STR2## by reaction with III ##STR3## A and B are same or different and are lower alkylene having 1 to 6 carbon atoms; and n is 3 to 4.
摘要:
Compounds of the formula I ##STR1## where R(1), R(2), R(3), R(4) and R(5) are, inter alia, hydrogen and alkyl, m is 1-4, n is 0 or 1, p is 0-4 and R(6) is identical or different dialkylamine derivatives, and salts thereof, have a calcium-antagonistic action. They are obtained by reacting corresponding amines with a compound II which carries, on the side chain, a leaving group which can be displaced nucleophilically, or from a hydroxyphenyl-dihydroquinolin-2-one compound by reaction with a corresponding side chain compound which has a leaving group which can be displaced nucleophilically.