摘要:
A process for preparing a 2-carbamoylocxyalkyl-1,4-dihydropyridine derivative represented by the general formula: ##STR1## which comprises: (a) reacting a 3-amino-3-carbamoyloxyalkylacrylic acid derivative represented by the general formula: ##STR2## with a benzylidene compound represented by the general formula: ##STR3## (b) reacting the 3-amino-3-carbamoyloxyalkylacrylic acid derivative of the general formula II with an aldehyde compound represented by the general formula: ##STR4## and a .beta.-keto-ester compound represented by the general formula:R.sup.4 --CO--CH.sub.2 --COOR.sup.2 (V)(c) reacting a 3-carbamoyloxyalkylpropiolic acid derivative represented by the general formula: ##STR5## with the benzylidene compound of the general formula III and ammonia or its salt; or(d) reacting the 3-carbamoyloxyalkylpropiolic acid derivative of the general formula VI with the aldehyde compound of the general formula IV, the .beta.-keto-ester compound of the general formula V and ammonia or its salt.
摘要:
A process for preparing a 2-carbamoyloxyalkyl-1,4-dihydropyridine derivative represented by the general formula: ##STR1## which comprises: (a) reacting a 3-amino-3-carbamoyloxyalkylacrylic acid derivative represented by the general formula: ##STR2## with a benzylidene compound represented by the general formula: ##STR3## (b) reacting the 3-amino-3-carbamoyloxyalkylacrylic acid derivative of the general formula II with an aldehyde compound represented by the general formula: ##STR4## and a .beta.-keto-ester compound represented by the general formula:R.sup.4 --CO--CH.sub.2 --COOR.sup.2 (V)(c) reacting a 3-carbamoyloxyalkylpropiolic acid derivative represented by the general formula: ##STR5## with the benzylidene compound of the general formula III and ammonia or its salt; or(d) reacting the 3-carbamoyloxyalkylpropiolic acid derivative of the general formula VI with the aldehyde compound of the general formula IV, the .beta.-keto-ester compound of the general formula V and ammonia or its salt.
摘要:
A compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or a lower alkyl group, R.sup.2 is a hydrogen atom or a negative charge, R.sup.3 is a hydrogen atom or a lower alkyl group, Ar is a phenyl group, a naphthyl group or a group of: ##STR2## (wherein each of A.sub.4 and A.sub.5 is a single bond, --NHSO.sub.2 -- or the like, and Het is a pyrrolinyl group, a 1,4-diazabicyclo�2.2.2!octanyl group or the like which may be substituted with a hydroxyl group, a carbamoyl lower alkyl group or the like) which may be substituted with a lower alkyl group, a lower alkylsulfamoyl group or the like which may be substituted with a hydroxyl group, a di-lower alkylsulfonyl group or the like; a hydroxyl group; a di-lower alkylsulfamoyl group or the like, each of A.sub.1, A.sub.2 and A.sub.3 is a single bond or a lower alkylene group which may be substituted with a lower alkyl group, a lower alkylsulfamoyl group or the like which may be substituted with a hydroxyl group, a di-lower alkylsulfamoyl group or the like; a pyridyl group or a pyridino group; and W is a sulfur atom, a single bond; or a pharmaceutically acceptable salt or ester; a process for its production and an antibacterial agent containing it as an active ingredient.
摘要:
The present invention relates to stable cyrstalline (6R,7R)-7-[(Z)-2-(2-aminothiazol-4-yl)-2-(1-carboxy-1-methylethoxyimino)acetamido]-3-(5,6-dihydroxy-2-methyl-2-isoindolinium)-3-cephem-4-carboxylate sulfate or its hydrate, a process for production of the compound and (6R,7R)-7-[(Z)-2-(2-aminothiazol-4-yl)-2-(1-carboxyl-1-methylethoxyimino)acetamido]-3-(5,6-dihydroxy-2-methyl-2-isoindolinium)methyl-3-cephem-4-carboxylate hydrochloride or its hydrate which is a starting material useful for the production of the desired compound of the present invention.
摘要:
Carbapenem compounds of formula I and their pharmaceutically acceptable salts and esters are provided: ##STR1## wherein R, R.sup.1, R.sup.2, R.sup.3, p, q and r are as defined herein, which are useful as antibacterial agents.
摘要:
A compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or a methyl group, each of R.sup.2 and R.sup.3 which may be the same or different, is a hydrogen atom or a lower alkyl group, or R.sup.2 and R.sup.3 form together with the adjacent nitrogen atom a heterocyclic group selected from the group consisting of an aziridinyl group, an azetidinyl group, a pyrrolidinyl group, a piperidino group, a piperazinyl group and a morpholino group, A is a carbonyl group or a single bond, and n is an integer of from 0 to 3; or a pharmaceutically acceptable salt or ester thereof.
摘要:
The present invention relates to stable crystalline (6R,7R)-7-(Z)-2-(2-aminothiazol-4-yl)-2-(1-carboxy-1-methylethoxylimino)acetamido]-3-(5,6-dihydroxy-2-methyl-2-isoindolinium)methyl-3-cephem-4-carboxylate sulfate or its hydrate, a process for production of the compound and (6R,7R)-7-7-[(Z)-2-(2-aminothiazol-4-yl)-2-(1-carboxy-1-methylethoxyimino)acetamido]-3-(5,6-dihydroxy-2-methyl-2-isoindolinium)methyl-3-cephem-4-carboxylate hydrochloride or its hydrate which is a starting material useful for the production of the desired compound of the present invention.
摘要:
A compound represented by the general formula wherein R1 either represents a hydrogen atom or a lower alkyl group, R2 represents a hydrogen atom, an ester residue, an alkali metal or negative charge, and R3 and R4 are the same or different, and each represent a hydrogen atom or a hydrocarbonic group optionally containing hetero atom(s) selected from the group consisting of oxygen atom(s), sulfur atom(s) and nitrogen atom(s), or they are combined together with the nitrogen atom to which they bound to form a heterocyclic group, and the use thereof as an antibacterial agent.
摘要:
A compound having the formula: ##STR1## wherein R is a straight chain or branched chain lower alkyl, cyclic lower alkyl, lower alkenyl (except for 1-carboxy-1-vinyl), lower alkynyl, aralkyl, phenyl or 2-pyrrolidon-3-yl group which may be substituted, and Q is ##STR2## (wherein R.sup.1 is a hydrogen atom or an acetyl group, R.sup.2 is a hydrogen atom, a carboxyl group or a carboxymethyl group, Y is a sulfur atom or an oxygen atom, Z is a sulfur atom, an oxygen atom or an imino group which may be substituted by a lower alkyl group); or a pharmaceutically acceptable salt, physiologically hydrolyzable ester or solvate thereof.
摘要:
A process for producing a compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl group or an aralkyl group, and R.sup.2 is a hydrogen atom or a hydroxyl-protecting group, or a salt thereof, which comprises removing from a compound of the formula: ##STR2## wherein R.sup.3 is a hydrogen atom or a hydroxyl-protecting group, R.sup.4 and R.sup.5 which may be the same or different are N-protecting groups selected from the group consisting of lower alkyl groups and aralkyl groups, and X.sup..crclbar. is an anion, the N-protecting group(s), if necessary, together with the hydroxyl-protecting group.