摘要:
Process for the synthesis of .alpha.-substituted acrylic acids of general formula (I) and their application to the synthesis of N-(mercaptoacyl)aminoacid derivatives of formula (II). ##STR1##
摘要:
A class of substituted spiro compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula III: ##STR1## wherein n is a number selected from 0, 1 and 2; wherein R.sup.3 is methylsulfonyl or sulfamyl; and wherein R.sup.8 is selected from hydrido, fluoro, chloro, bromo, iodo, methyl, ethyl, n-propyl, isopropyl, butyl, tert-butyl, isobutyl, methoxy, ethoxy, propoxy, butoxy, hydroxyl, mercapto, methylthio, ethylthio, cyano, fluoromethyl, difluoromethyl, trifluoromethyl, chloromethyl, dichloromethyl, trichloromethyl, pentafluoroethyl, heptafluoropropyl, difluorochloromethyl, dichlorofluoromethyl, difluoroethyl, difluoropropyl, dichloroethyl, dichloropropyl, trifluoromethoxy, hydroxymethyl, methoxymethyl and ethoxymethyl; or a pharmaceutically-acceptable salt thereof.
摘要:
Sulfated metaaminophenols are disclosed and have the formula ##STR1## where: Z is alkyl, aralkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl, aminoalkyl;R.sub.1 is hydrogen, alkyl, monohydroxyalkyl, polyhydroxyalkyl, monocarbamylalkyl, dicarbamylalkyl, aminoalkyl, acylaminoalkyl, carbalkoxyalkyl, carbamyl, or monoalkylcarbamyl;R.sub.2 is hydrogen, alkyl, monohydroxyalkyl, alkoxy;and their acid salts.Intermediate products used for their preparation are also disclosed.These sulfated metaaminophenols are used to dye keratinous fibers.
摘要:
The present invention relates to 2-arylethyl ether or thioether derivatives represented by the following general formula [I]: ##STR1## wherein Ar stands for an aryl group, R.sup.1 stands for straight or branched chain alkyl group of 1 to 6 carbons, R.sup.2 stands for a hydrogen atom, or a methyl or ethyl group, R.sup.3 stands for a halogen atom, or a methyl or methoxyl group, R.sup.4 stands for a hydrogen or halogen atom, or a lower alkyl or lower alkoxy group, and n is an integer of 1 or 2 with the proviso that when n is 2, the groups R.sup.4 may be the same or different, and Y stands for an oxygen or sulfur atom, and also to processes for the preparation of these ethers or thioethers and a use of these ethers or thioethers.These compounds of the present invention have excellent insecticidal and acaricidal activities while the toxicity of these compounds are very low.
摘要:
3,5-Dialkyl-4-hydroxybenzoates, 3,5-dialkyl-4hydroxythionobenzoates, 3,5-dialkyl-4-hydroxythiolobenzoates and 3,5-dialkyl-4-hydroxydithiobenzoates have morphogenetic hormonal mimetic activity on insects.
摘要:
Pharmaceutical compositions containing as an active ingredient a racemic or optically active compound of the formula WHEREIN Ar is 3,4-methylenedioxy-phenyl, indanyl, naphthyl or 1,4-benzodioxanyl, and R1 and R2 are each hydrogen, halogen, amino, acetyl-amino, trifluoromethyl, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkyl-carbonyl of 1 to 4 carbon atoms or alkylthio of 1 to 4 carbon atoms, OR A NON-TOXIC, PHARMACOLOGICALLY ACCEPTABLE ACID ADDITION SALT THEREOF; AND METHODS OF USING THEM AS CENTRAL NERVOUS SYSTEM DEPRESSANTS AND ANTIHYPERCHOLESTEREMICS.
摘要:
1. A METHOD OF PREPARING AN ALDEHYDE OF THE FORMULA
1-R1,2-R2,5-(H-CO-CH2-)-BENZENE
WHEREIN R1 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OFF HYDROGEN AND ALKOXY HAVING 1 TO 4 CARBONS, R2 IS A MEMBER SELECTED ROM THE GROUP CONSISTING OF HYDROGEN, HALOGEN AND ALKOXY HAVING 1 TO 4 CARBONS, AND R1 AND R2 TOGETHER REPRESENT ALKYIDENEDIOXY HAVING 1 TO 4 CARBONS, WHICH COMPRISES THE STEPS OF SUBJECTING TO AN ACIDIC HYDROLYSIS A SULFOXIDE OF THE FORMULA
1-R1,2-R2,5-(R3-S(=O)-CH(-S-R3)-CH-CH2-)-BENZENE
WHREIN R1 AND R2 HAVE THE ABOVE MEANINGS, AND THE TWO R3 GROUPS ARE THE SAME AND EACH SELECTED FROM THE GROUP CONSISTING OF ALKYL HAVING 1 TO 4 CARBONS AND PHENYL SAID ACIDIC HYDROLYSIS BEING CARRIED OUT IN THE PRESENCE OF MINERAL OR ORGANIC PROTIC ACID HAVING A PK SMALLER THAN ABOUT 1 OR LEWIS AICDS.
WHEREIN X REPRESENTS OXYGEN OR SULFUR; Y REPRESENTS HYDROGEN OR HALOGEN AND R REPRESENTS A LOWER ALKYL GROUP, HAVE BEEN PREPARED AND HAVE BEEN FOUND TO POSSESS REMARKABLE SELECTIVE GROWTH CONTROLLING PROPERTIES.
摘要:
Beta -Aralkylthio-substituted- Alpha -amino acids and derivatives thereof useful as antiinflammatory agents are described. A process for preparing some of these amino acids by reaction of the corresponding aldehydes or ketones in the Strecker or hydantoin synthesis is shown.