摘要:
A process is provided for preparing triazole substituted azaindoleoxoacetic piperazine derivative. Novel intermediates produced in the above process, and novel N-1 and amorphous forms of a 1,2,3-triazole substituted azaindoloxoacetic piperazine derivatives and processes for producing such novel forms are also provided.
摘要:
Disclosed herein is a novel process in which novel aldehydes ##STR1## and the trans isomer thereof are hydrolyzed by treatment with an alkali metal carbonate, bicarbonate or hydroxide and water to form the cis enantiomer ##STR2## Also disclosed is a process for preparing [1S-[1.alpha., 2.alpha.(Z), 3.alpha., 4.alpha.]]-7-[3[[[[(1-oxoheptyl)amino]acetyl]-amino ]methyl-7-oxabicyclo-[2.2.1]hept-2-yl]-5-heptenoic acid using the above process.
摘要:
A process is provided for preparing (trans)-4-phenyl-DL-proline derivatives, which are useful in preparing certain angiotensin converting enzyme inhibitors, which process involves reacting an ester of the structure ##STR1## wherein X is a leaving group such as tosylate, R.sup.3 is lower alkyl, R is cyclohexyl, phenyl or substituted phenyl, and R.sup.1a is a protecting group, with a potassium amide base such as potassium hexamethyldisilazide under reduced temperatures to form the trans-4-substituted proline ester derivative of the structure ##STR2## then hydrolyzing the proline ester to the acid of the structure ##STR3## and removing the R.sup.1a nitrogen protecting group to form the unprotected acid of the structure ##STR4##
摘要:
Antibacterial activity is exhibited by 2-azetidinones activated in the 1-position with an --SO.sub.3 H group and having in the 3-position an acylamino group of the formula ##STR1## wherein X is --(CH.sub.2).sub.n --, n is 0 or 1, ##STR2## wherein the carbonyl group is bonded to the "T" group, or ##STR3## wherein the carbonyl group is bonded to the "T" group and T is ##STR4##
摘要:
Antibacterial activity is exhibited by 2-azetidinones activated in the 1-position with an --SO.sub.3 H group and having in the 3-position an acylamino group of the formula ##STR1## wherein X is --(CH.sub.2).sub.n --, n is 0 or 1, ##STR2## wherein the carbonyl group is bonded to the "T" group, or ##STR3## wherein the carbonyl group is bonded to the "T" group and T is ##STR4##
摘要:
The present invention relates to a process for the preparation of &agr;′ chloroketones, such as 4-phenyl-3-t-butyloxy-carbonylamino)-2-keto-1-chlorobutane by reacting certain aryl amino acid esters, e.g. N-(2-t-butoxycarbonyl)-L-phenylalanine-4-nitrophenyl ester, with a sulfur ylide compound to form the corresponding keto ylide compound which is then treated with a source of chloride and an organic acid.
摘要:
A compound having the structure ##STR1## is reacted with Ph.sub.3 P.dbd.CH(CH.sub.2).sub.3 Y wherein Y is --CO.sub.2 .sup..crclbar. M.sup..sym. or --C.tbd.N to form ##STR2## which is aminated and esterified to form ##STR3## which may be used to form [1S-[1.alpha.,2.alpha.(Z),3.alpha., 4.alpha.[[-7-[3-[[[[1-oxoheptyl) -amino]acetyl]amino]methyl]-7-oxabicyclo-[2.2.1]-hept-2-yl]-5-heptenoic acid.
摘要:
A new process for preparing [1S-[1.alpha.,2.alpha.(Z),-3.alpha.,4.alpha.]]-7-[3-[[[[(1-oxoheptyl)-amino]acetyl]amino]methyl]-7-oxabicyclo [2.2.1]-hept-2-yl]-5-heptenoic acid. New intermediates are also described. [1S-(1.alpha.,2.alpha.(9Z),3.alpha.,4.alpha.]]-7-[3-[[[[(1-oxoheptyl)-amino]acetyl]amino]methyl]-7-oxabicyclo[2.2.1]hept-2-yl]-5-heptenoic acid is useful in the treatment of thrombotic disease.
摘要:
A process is provided for preparing (trans)-4-phenyl-L-proline derivatives with excellent stereospecificity, which are useful in preparing certain ACE inhibitors, which process involves reacting a proline derivative of the structure ##STR1## whereing R is a nitrogen protecting group, R.sub.1 is H, aryl, arylalkyl or lower alkyl, and X is a leaving group such as fluorine, an alkyl sulfonate, arylsulfonate or cycloalkyl sulfonate is reacted with an aromatic nucleophile, such as benzene, in the presence of a Lewis acid such as AlCl.sub.3 to form the (trans)-4-phenyl-L-proline derivative of the structure ##STR2##
摘要:
Antibacterial activity is exhibited by .beta.-lactams having the formula ##STR1## wherein R is hydrogen or methoxy;R.sub.1 is an acyl group derived from a carboxylic acid;R.sub.2 and R.sub.3 are each independently hydrogen, alkyl, or aryl or R.sub.2 and R.sub.3 when taken together with the nitrogen atom to which they are attached are ##STR2## wherein n is 4 or 5 and R.sub.4 is hydrogen, alkyl or amino; and M.sup..sym. is hydrogen or a cation.