Abstract:
NOVEL 1B-OXY-4-(CARBOXYMETHYL)-5-(P-LOWER ALKOXYPHENYL)-7A-Y-INDANES WHEREIN Y IS AN ALKYL OF 1 TO 18 CARBON ATOMS WHICH ARE USEFUL INTERMEDIATES FOR THE TOTAL SYNTHESIS OF 13B-Y-$1,3,5(10)-GONATRIENES.
Abstract:
LACTONES OF 2-(CARBONYL-AMINO-METHYL)-5-HYDROXYMETHYL-3,6-DIHYDRO-2H-1,3-THIAZINE-4 -CARBOXYLIC ACIDS USEFUL AS INTERMEDIATES FOR ANTIBIOTICS OF THE C-CEPHALOSPORINE FAMILY AND THEIR PREPARATION. THE INVENTION RELATES TO NOVEL DIHYDRO-1,3-THIAZINE COMPOUNDS OF THE FORMULA
WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARALKYL, Y IS SELECTED FROM THE GROUP CONSISTING OF -HN-AC, PHTHALIMIDO AND-NH-R'',R'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL AND ARALKYL AND AC IS THE ACYL RADICAL OF AN ORGANIC CARBOXYLIC ACID OF 1 TO 18 CARBON ATOMS AND TO A NOVEL PROCESS FOR THE PREPARATION OF THE SAID COMPOUNDS.
WHEREIN R1 REPRESENTS THE ACYL OF AN ORGANIC ACID AND R2 REPRESENTS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL, SUBSTITUTED ALKYL, ARYL AND SUBSTITUTED ARYL. THESE COMPOUNDS HAVE PARTICULARLY MARKED ANTIBIOTIC PROPERTIES, PARTICULARLY, A REMARKABLE ACTIVITY AGAINST STAPHYLOCOCCI.
Abstract:
THIS INVENTION RELATES TO A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) A RACEMIC 6H,7H-CIS-7-AMINODESACETYLCEPHALOSPORANIC ACID DERIVATIVE OF THE FORMULA
2,3-(-COO-CH2-),7-(R-NH-)-2-CEPHEM
WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND TRIPHENYLMETHYL, (2) IS OPTICALLY ACTIVE ANTIPODES AND (3) WHEN R IS HYDROGEN THEIR ACID ADDITION SALTS. THE INVENTION ALSO RELATES TO THE PROCESS OF PREPARING THESE COMPOUNDS. THESE COMPOUNDS ARE INTERMEDIATES USEFUL IN THE PREPARATION OF CEPHALOSPORIN ANTIBIOTICS AND THE 7-THIENYLACETYLAMINO DERIVATIVE POSSESSES AN ANTIBIOTIC ACTIVITY.
Abstract:
OPTICAL ISOMERS OF 1-P-NITROPHENYL-2-N,N-DIMETHYLAMINO-PROPANE-1,3-DIOL AND ACID ADDITION SALTS THEREOF, USEFUL FOR THE SEPARATION OF RACEMIC COMPOUNDS AND PREPARATION THEREOF.