摘要:
Ortho-mercaptoaroylamides and pharmaceutically acceptable salts thereof exhibit hypoglycemic activity in warm-blooded animals. The compounds may be prepared directly by the reaction of a secondary amine with a 2-imino-1,3-benzothiazin-4-one or indirectly by the reaction of the desired amine with (ochlorocarbonylphenyl) dithioether followed by reduction of the disulfide linkage.
摘要:
Novel 5-aryl-1H-1,4-benzodiazepine-2(3H)-one-3-phosphonic acids and their lower alkyl and phenyl(lower)alkyl esters which are CNS depressants, and processes for their use in preparing other 3substituted benzodiazepines.
摘要:
3-(2-(Thioacylthio)alkanamido)-1,4-(cyclo-(1''carboxy)alkylenethio)azetidin-2-one derivatives possessing antibacterial activity are produced by the reaction of a carbodithioic acid 1-carboxy(lower)alkyl ester and a 3-amino-1,4(cyclo(1''-carboxy)alkylenethio)azetidin-2-one derivative in the presence of a condensing agent.
摘要:
A process for the preparation of 6-aryl-4H-s-triazolo(4,3a)(1,4)benzodiazepines from 2-halo-5-aryl-3H-1,4-benzodiazepines, and tetrazoles. The products are known CNS depressants with low toxicity.
摘要:
This invention concerns 2-amido-6-aminopenicillanic acids, 2amido-6-haloimidopenicillins, 2-amido-6-alkoxyimidopenicillins, 2-amido-7-amino-cephalosporanic acids, 2-amido-7-haloimidocephalosporins and 2-amido-7-alkoxyimido-cephalosporins which are useful as intermediates in the preparation of synthetic penicillins and cephalosporins having potent antibiotic activity. Further, it relates to a process for the preparation of these intermediates from penicillins and cephalosporins. Still further, it concerns the preparation of 6-aminopenicillanic acid and 7aminocephalosporanic acid by the respective hydrolysis of 2amido-6-aminopenicillanic acids and 2-amido-7aminocephalosporanic acids.
摘要:
The invention presents gram-positive and gram-negative antibacterial agents of the structural formula
IN WHICH R1 and R2 are independently -H or alkyl of 1 to 6 carbon atoms, and when taken together, R1 and R2 are trimethylene; R3 is -H, alkyl of 1 to 6 carbon atoms or methylthioethyl; N IS 0 OR 1, WITH THE PROVISO THAT WHEN N IS 1, R3 is -H; and A is a 7-amino-cephalosporin or 6-amino-penicillin moiety.
摘要:
Various derivatives of 4-oxo-5-thiazolinyl(thiazinyl)acetamidocephalosporanic and penicillanic acid of potent anti-bacterial activity are produced by acylating 6aminopenicillanic acid or 7-aminocephalosporanic acid with derivatives of 4-oxo-thiazolin-5-acetic acid and 4-oxo-thiazin-5acetic acid in the presence of a condensing agent or by conversion to an acid halide.
摘要:
THIS INVENTION CONCERNS 2-HALO-3-SUBSTITUTED INDOLES WHICH ARE USEFUL AS BRONCHODILATORS. FURTHER, IT RELATES TO THE PROCESS OF PREPARING SOME OF THESE COMPOUNDS BY THE HALOGENATION OF APPROPRATE 3-SBUSTITUTED INDOLES.
摘要:
THIS INVENTION CONCERNS A PROCESS FOR THE PREPARATION OF CRYSTALLINE N,N''-DIBENZYLETHYLENEDIAMINE BIS (D(-)A-AMINOBENZYLPENICILLIN)TRIHYDRATE OF HIGH PURITY AND POTENCY HAVING AN AVERAGE PARTICLE SIZE IN THE RANGE OF ABOUT TWO TO ABOUT THIRTY MICRONS WHICH IS USEFUL IN THE PREPARATION OF PHARMACEUTICALLY ELEGANT ANTIBIOTIC DOSGE FORMS.