摘要:
##STR1## α, ω-dicarboxylic acids having the general formula (I') in which: R 1 and R 2 , which may be different or the same, represent a lower alkyl group which can be substituted by hydroxy, lower alkoxy, halogen or phenyl, the phenyl being capable of substitution one or several times by hydroxy, lower alkoxy, lower alkyl or halogen; a lower alkenyl or alkinyl group; a C 3 -C 7 -cyclo-alkyl group or a phenyl group possibly substituted by hydroxy, halogen, lower alkyl or lower alkoxy, and X and Y, which may be different or the same, represent hydrogen, lower alkyl, lower alkoxy, hydroxy, cyano, halogen, carboxyl, lower alkoxycarbonyl or carbamoyl, and Q represents non-ramified, saturated or unsaturated alkyl chain with 8-14 C atoms, which can be substituted, interrupted by hetero-atoms, and form part of a cyclic system, as well as their carboxylic acid derivatives in vivo, provided that when Q represents an unramified, saturated alkyl chain with 8-14 C atoms, and R 1 and R 2 represent methyl and Y represents hydrogen, X may not represent hydrogen, ethoxy-carbonyl, bromine, cyano or methyl, and if R 1 and R 2 represent methyl and X and Y hydrogen, then Q may not represent any formula (II) group. Process for their preparation and medicines containing these compounds, which have an anti-diabetic action and lower the level of lipids.
摘要:
Novel 2-vinyl- and 2-ethyl-cyclopropyl sulfones are provided. In addition to the ethyl or vinyl group at the 2-position of the ring, the compounds of this invention are disubstituted at the 1-position with a sulfonyl group and an acyl, nitrile or nitrile-derived radical. The sulfones of this invention are useful chemical intermediates from which a wide variety of pesticidal, herbicidal or biologically active compounds can be prepared and are useful monomers for anionic or radical polymerizations.
摘要:
(18.beta. and 18.alpha.)-2.alpha.-Cyano-3,11-dioxo-olean-12-en-29-oic acids and lower-alkyl esters thereof, useful as ulcer preventing and ulcer healing agents, are prepared from 18.beta.- or 18.alpha.-glycyrrhetinic acid, the final step being alkaline cleavage of 18.beta.- or 18.alpha.-11-oxo-olean-2,12-dieno[2,3-d]isoxazol-29-oic acid or an ester thereof.
摘要:
Styryl-cyclopropane derivatives of the formula ##STR1## in which R.sup.9 represents independently of one another when n=2, halogen, cyano, nitro, or an optionally halogen-substituted alkyl, alkoxy, alkylthio or alkylenedioxy radical,n represents zero, 1, 2, 3, 4 or 5,R.sup.10 represents hydrogen or halogenandY represents acetyl, cyano or carbamoyl, are produced by reacting a benzylphosphonic acid ester of the formula ##STR2## in which R.sup.4 each independently represents alkyl or phenyl or together represent alkylene, with a formylcyclopropane derivative of the formula ##STR3## or by reacting an .alpha.-hydroxyphosphonic acid ester of the formula ##STR4## with an olefinating agent of the formula ##STR5## in which Z' represents a phosphorus-containing radical ##STR6## wherein R.sup.5 and R.sup.6 are identical or different and individually represent alkyl, phenyl, alkoxy or pehnoxy or R.sup.5 and R.sup.6 together represent alkanedioxy,R.sup.7 represents alkyl or phenyl andX represents halogen, in the presence of a base at a temperature between about -70.degree. and +150.degree. C. Other olefins can be similarly prepared. Many intermediates are new and the end products are themselves intermediates for insecticides.
摘要:
A perfluoroalkane-sulphinic acid of the formula R.sub.F --SO.sub.2 H is reacted with a diene at -20.degree. to +20.degree. C. to form the new intermediate ##STR1## in which R.sup.3 -R.sup.8 are hydrogen or various organic radicals or double bonds, and that is reacted with a .beta.,.beta.-dimethyl-acrylic acid derivative of the formula ##STR2## in the presence of a base at a temperature between about -20.degree. and +30.degree. C. to produce a cyclopropane carboxylic acid derivative of the formula ##STR3## in which Z is alkoxycarbonyl or cyano and R.sup.1 and R.sup.2 are hydrogen or various organic radicals. The products are known intermediates for insecticides.
摘要:
Novel cyano substituted diphenoquinones of the formula, ##STR1## wherein X is a bromine atom or a cyano group, are useful as oxidizing agents and electron acceptors in charge-transfer complex formation owing to their high redox potentials. They may be easily prepared by oxidizing the corresponding cyano substituted biphenols with dinitrogen tetraoxide in an inert organic solvent.
摘要:
Improved procedures and intermediates for synthesizing 11-deoxyprostaglandins wherein trans-2,3-dicarbomethoxycyclopentanone is prepared by the novel kinetically-controlled cyclization of 1,2,4-tricarbomethoxybutane using a dispersion of sodium hydride in dry p-xylene. Selective alcoholysis of the 2-position carbomethoxy group with benzyl alcohol, followed by alkylation allows for a wide range of upper side chains to be introduced at the 2-position of the cyclopentanone ring. The unwanted carbobenzyloxy group at the 2-position can then be removed easily by controlled hydrogenolysis followed by decarboxylation. This procedure allows for simultaneous epimerization of the 2-position side chain to the desired trans-configuration, relative to the carbomethoxy group in the 3-position, as well as for reduction of the 2-hexynyl moiety of the side chain to the desired cis-olefinic group of the E.sub.2 -type 11-deoxyprostaglandins, or through total reduction to the alkane upper side chain of E.sub.1 -type prostaglandin analogs. Modification thereafter of the carbonyl group at the 3-position of the cyclopentanone ring by a variety of reagents allows introduction of the lower side chain present in the prostaglandins themselves or a variety of other side chains derived from the 3-carboxy-, 3-hydroxymethyl- or 3-aldehyde-substituted cyclopentanone ring. From the latter, 11-deoxyprostaglandins can be prepared by known procedures.
摘要:
The 19-cyano-20-nor derivatives of prostaglandins E.sub.1 and E.sub.2, and certain esters thereof, are bronchodilatory agents, useful in the treatment of bronchial asthma, bronchitis, pneumonia and emphysema. The 19-cyano-20-nor derivatives of prostaglandins E.sub.1 and E.sub.2, and certain esters thereof, which also have protecting groups on the hydroxy groups at C-11 and C-15 are useful intermediates for the preparations of the bronchodilatory agents of this invention.
摘要:
The present invention concerns unsaturated ethers or thioethers of the formula: ##EQU1## wherein R.sub.1 is an aliphatic or alicyclic hydrocarbon, R.sub.2 and R.sub.3 are H or alkyl, Y is cyano, amido, a ketone or an acid esters, ##EQU2## is an ether, thioether or a saturated or unsaturated c--c bond and n is an integer, which exhibit insecticidal properties.
摘要:
Cyclization of a dialkali metal salt of 1,1,2,3-4,4-hexacyano-2butenediide with acid yeilds 1-amino-2,3-4,5,5pentacyanocyclopentadiene which is converted to 1-amino-2,34,5,5-tetracyanocyclopentadiene which is converted to 1-amino2,3,4,5-tetracyanocyclopentadiene with strong mineral acid. Reaction of the pentacyanocyclopentadiene with nitrous acid gives 1-diaza-2,3,4,5-tetracyanocyclopentadiene which can be reacted with trialkyl or triaryl phosphorus to give 1-tri(aryl or alkyl)phosphazino-2,3,4,5-tetracyanocyclopentadiene. The diazotetracyanocyclopentadiene compound can be reacted with alkali metal compounds preferably under reducing condition to yield salts wherein the diazo group is replaced with hydrogen, amino, cyano, hydroxy, carboxy, alkoxycarbonyl, alkyl, aryl, phydroxyphenyl, nitro and mercapto groups. The cyanocyclopentadiene compounds are useful as rodenticides and as rocket propellants.