Esters and amides of pyrimido[4,5-b]quinolin-4(3H)-one-2-carboxylic acids as antiulcer agents
First Claim
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1. A compound of the formula ##STR14## wherein Z is selected from the group consisting of hydroxyalkyl having from two to four carbon atoms, aminoalkyl having from two to four carbon atoms;
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space="preserve" listing-type="equation">--(alk).sub.m --(O).sub.n --Wwhereineach of m and n is 0 or 1, provided that when n is 1, m is 1;
(alk) is alkylene having from one to four carbon atoms, provided that when n is 1, (alk) is alkylene having from two to four carbon atoms;
W is selected from the group consisting of pyridyl, imidazolyl and ##STR15## wherein X is selected from the group consisting of hydrogen, amino, carboxy, hydroxy, alkyl having from one to four carbon atoms and alkoxy having from one to four carbon atoms;
Y is selected from the group consisting of hydrogen, methyl, carboxyalkyl having from one to four carbon atoms in the alkyl group and carbalkoxyalkyl having from one to four carbon atoms in each of the alkyl and alkoxy groups;
R1 is selected from the group consisting of hyrogen, alkyl having from one to four carbon atoms and phenyl;
each of R2, R3 and R4 when taken separately is selected from the group consisting of hydrogen, alkyl having from one to four carbon atoms, alkoxy having from one to four carbon atoms, halo, hydroxy, benzyloxy, benzoyloxy, alkanoyloxy having from one to four carbon atoms, thiol, methylthio, methylsulfinyl, benzylthio and benzylsulfinyl;
with the proviso that no more than two of R2, R3 and R4 are branched alkyl or alkoxy, and when two of R2, R3 and R4 are branched chain alkyl or alkoxy, said groups are located on non-adjacent carbon atoms;
R2 and R3 or R3 and R4 when taken together are alkylenedioxy and are selected from the group consisting of methylenedioxy and ethylenedioxy;
with the proviso that only one of said pairs is alkylenedioxy; and
the pharmaceutically acceptable acid addition salts thereof, and the pharmaceutically acceptable cationic salts of those compounds wherein W is carboxyphenyl or Y is carboxyalkyl.
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Abstract
A series of alkyl ester and amide derivatives of pyrimido[4,5-b]quinolin-4(3H)-one-2-carboxylic acids, salts thereof and their preparation and use as antiulcer agents.
41 Citations
27 Claims
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1. A compound of the formula ##STR14## wherein Z is selected from the group consisting of hydroxyalkyl having from two to four carbon atoms, aminoalkyl having from two to four carbon atoms;
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space="preserve" listing-type="equation">--(alk).sub.m --(O).sub.n --Wwherein each of m and n is 0 or 1, provided that when n is 1, m is 1; (alk) is alkylene having from one to four carbon atoms, provided that when n is 1, (alk) is alkylene having from two to four carbon atoms; W is selected from the group consisting of pyridyl, imidazolyl and ##STR15## wherein X is selected from the group consisting of hydrogen, amino, carboxy, hydroxy, alkyl having from one to four carbon atoms and alkoxy having from one to four carbon atoms; Y is selected from the group consisting of hydrogen, methyl, carboxyalkyl having from one to four carbon atoms in the alkyl group and carbalkoxyalkyl having from one to four carbon atoms in each of the alkyl and alkoxy groups; R1 is selected from the group consisting of hyrogen, alkyl having from one to four carbon atoms and phenyl; each of R2, R3 and R4 when taken separately is selected from the group consisting of hydrogen, alkyl having from one to four carbon atoms, alkoxy having from one to four carbon atoms, halo, hydroxy, benzyloxy, benzoyloxy, alkanoyloxy having from one to four carbon atoms, thiol, methylthio, methylsulfinyl, benzylthio and benzylsulfinyl; with the proviso that no more than two of R2, R3 and R4 are branched alkyl or alkoxy, and when two of R2, R3 and R4 are branched chain alkyl or alkoxy, said groups are located on non-adjacent carbon atoms; R2 and R3 or R3 and R4 when taken together are alkylenedioxy and are selected from the group consisting of methylenedioxy and ethylenedioxy; with the proviso that only one of said pairs is alkylenedioxy; and the pharmaceutically acceptable acid addition salts thereof, and the pharmaceutically acceptable cationic salts of those compounds wherein W is carboxyphenyl or Y is carboxyalkyl. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for the control of peptic ulcers in animals in need of said treatment which comprises administering, by either the intraperitoneal or oral route to the animals an antipeptic ulcer amount of a compound having the formula ##STR18## wherein R0 is selected from the group consisting of alkoxy having from one to four carbon atoms, and NHZ wherein Z is selected from the group consisting of hydrogen, hydroxyalkyl having from two to four carbon atoms, aminoalkyl having from two to four carbon atoms;
- alkyl having from one to four carbon atoms and;
space="preserve" listing-type="equation">--(alk).sub.m --(O).sub.n --Wwherein each of m and n is 0 or 1, provided that when n is 1, m is 1; (alk) is alkylene having from one to four carbon atoms, with the proviso that when n is 1, (alk) is alkylene having from two to four carbon atoms; W is selected from the group consisting of pyridyl, imidazolyl and ##STR19## wherein X is selected from the group consisting of hydrogen, amino, carboxy, hydroxy, alkyl having from one to four carbon atoms and alkoxy having from one to four carbon atoms; Y is selected from the group consisting of hydrogen, methyl, carboxyalkyl having from one to four carbon atoms in the alkyl group and carboxyalkyl having from one to four carbon atoms in each of the alkyl and alkoxy groups; R1 is selected from the group consisting of hydrogen, alkyl having from one to four carbon atoms and phenyl; each of R2, R3 and R4 when taken separately is selected from the group consisting of hydrogen, alkyl having from one to four carbon atoms, alkoxy having from one to four carbon atoms, halo, hydroxy, benzyloxy, benzoyloxy, alkanoyloxy having from one to four carbon atoms, thiol, methylthio, methylsulfinyl, benzylthio and benzylsulfinyl; with the proviso that no more than two of R2, R3 and R4 are branched alkyl or alkoxy, and when two of R2, R3 and R4 are branched chain alkyl or alkoxy, said groups are located on non-adjacent carbon atoms; R2 and R3 or R3 and R4 when taken together are alkylenedioxy and are selected from the group consisting of methylenedioxy and ethylenedioxy; with the proviso that only one of said pairs is alkylenedioxy; and the pharmaceutically acceptable acid addition salts thereof, and the pharmaceutically acceptable cationic salts of those compounds wherein W is carboxyphenyl or Y is carboxyalkyl. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
- alkyl having from one to four carbon atoms and;
Specification