摘要:
.alpha.-substituted derivatives of valproic acid are provided for conjugation to antigenic compositions, particularly poly(amino acids), and enzymes. The antigenic conjugates are employed for the production of antibodies, which find particular use in immunoassays for the determination of valproate, while the enzyme conjugate finds use in a homogeneous enzyme immunoassay for the determination of valproate. The compounds are synthesized by alkylating valproate at the tertiary carbon atom by an aliphatic chain with a terminal double bond which is cleaved to provide an acid or aldehyde group.
摘要:
The new 7-(.alpha.,.alpha.-disubstituted-acetamido)-3-substituted-3-cephem-4-carboxylic acid of the present invention is represented by the following formula: ##STR1## wherein R.sup.1 is hydrogen, halogen, hydroxy, nitro, lower alkoxy or acylamino, R.sup.2 is hydrogen or acyl andR.sup.3 is lower alkanoyloxy, carbamoyloxy which may have lower alkyl, aryl or protective group for amino, or a heterocyclicthio which may have lower alkyl, aryl or protective group for amino, or a hetero- which may have lower alkyl.
摘要:
2,2-Difluoro prostaglandin E, F.sub..alpha., F.sub..beta., A and B analogs are disclosed with intermediates and with processes for making them. These compounds differ from the prostaglandins in that they have two fluoro atoms at the C-2 position in place of the two hydrogen atoms at C-2 in the prostaglandins. These compounds are useful for a variety of pharmacological purposes, including antiulcer, inhibition of platelet aggregation, increase in nasal patency, labor induction at term, and wound healing.
摘要:
Chrysanthemyl alcohol is selectively oxidized to the corresponding aldehyde by contact with oxygen-containing gas in the presence of supported noble metal catalyst composed of platinum on carbon. The obtained aldehyde may be further converted to chrysanthemic acid by oxidation with a solid inorganic oxidizing agent such as silver oxide in excess of stoichiometric quantity, or by reaction with a catalytic amount of oxidation promoting catalyst such as silver oxide in the presence of cupric oxide and molecular oxygen.
摘要:
Asymmetric synthesis of optically active 3,7,11-trimethyl-dodecan-1-ol, an intermediate for producing optically active vitamin E, from isovaleraldehyde or prenal including intermediates in this synthesis.
摘要:
By oxidation of straight-chained alpha-olefins having 16 to 70 carbon atoms with chromosulfuric acid, the corresponding aliphatic monocarboxylic acids are prepared without noteworthy degradation. The compounds obtained are suitable, inter alia, for making waxy esters or metal soaps which can be worked up into floor polishes or lubricants for plastic materials.
摘要:
Phenyl-lower-alkylamines having anti-inflammatory activity are prepared either by reductive alkylation of an amine with a phenyl-lower-alkanaldehyde; by condensation of a phenyl-lower-alkanaldehyde with a secondary amine, conversion of the resulting phenylvinylamine to the corresponding iminium salt, and reduction of the latter with an alkali metal borohydride; or by reaction of a phenyl-lower-alkanoyl halide with an amine and reduction of the resulting amide with a reagent effective to reduce an amide to an amine.
摘要:
A method of producing a macrocyclic ketone by microbially oxidizing a n-paraffin to produce a hydroxy acid, oxidizing the hydroxy acid to produce a diacid, esterifying the diacid to produce a diester, condensing the diester to produce a cyclic hydroxy ketone and reducing the cyclic hydroxy ketone to produce the macrocyclic ketone.
摘要:
A process for preparing compounds of the type of sinensal, which is suitable as a flavor-imparting agent of orange aroma, and novel intermediates including those having the general formula: ##SPC1##Wherein R signifies a CH.sub.2 OH, CHO or COOH group and the broken lines present a double bond emanating from C-atom 4, are disclosed.