摘要:
Compounds of formula (1), wherein R1-R3 and R5 independently are hydrogen, lower alkyl of 1 to 6 carbons, branched chain alkyl or cycloalkyl of 3 to 15 carbons, lower alkyl substituted cycloalkyl of 3 to 15 carbons; R4 is lower alkyl of 1 to 6 carbons, branched chain alkyl or cycloalkyl of 3 to 15 carbons or lower alkyl substituted cycloalkyl of 3 to 15 carbons; X is S or O; Y is a phenyl group, or heteroaryl selected from a group consisting of pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl, imidazolyl and oxazolyl, said groups being substituted with the R5 group defined above; A is (CH2)n where n is 0-5, lower branched chain alkyl having 3-6 carbons, cycloalkyl having 3-6 carbons, alkenyl having 2-6 carbons and 1 or 2 double bonds, alkynyl having 2-6 carbons and 1 or 2 triple bonds; B is hydrogen, COOH or a pharmaceutically acceptable salt thereof, COOR8, CONR9R10, -CH2OH, CH2OR11, CH2OCOR11, CHO, CH(OR12)2, CHOR13O, -COR7, CR7(OR12)2, or CR7OR13O, where R7 is an alkyl, cycloalkyl or alkenyl group containing 1 to 5 carbons, R8 is an alkyl group of 1 to 10 carbons, or a cycloalkyl group of 5 to 10 carbons, or R8 is phenyl or lower alkylphenyl, R9 and R10 independently are hydrogen, an alkyl group of 1 to 10 carbons, or a cycloalkyl group of 5-10 carbons, or phenyl or lower alkylphenyl, R11 is lower alkyl, phenyl or lower alkylphenyl, R12 is lower alkyl, and R13 is divalent alkyl radical of 2-5 carbons, have retinoid-like biological activity.
摘要:
This invention relates to compositions, compounds and methods for lightening skin, using active compounds having the structure (I) or (II) wherein: (i) each X is, independently, selected from the group consisting of halo, alkyl, substituted alkyl, aryl, OR, OCOR, COR, CONRR, COOR, CN, SR, SOR, SO2R, SO3R and NRR, wherein X is other than hydroxy, amino and thio, if this X is attached ortho to the phenol hydroxy; (ii) m is an integer from 0 to 4; (iii) each R' and R'' is, independently, selected from the group consisting of hydrogen, halo, alkyl, substituted alkyl, aryl, OR, OCOR, OCRROR, COR, CR(OR)OR, CONRR, COOR, CRROR, CN, SR, and NRR; wherein halo, when it appears, is other than geminal to a hydroxy, NH2, or SH; (iv) R''' is alkyl or substituted alkyl; wherein when R''' is present, and R' is also hydrogen, R'' is other than hydrogen, hydroxy, halo, thio, cyano and amino; (v) each R is, independently, selected from the group consisting of hydrogen, alkyl, substituted alkyl and aryl; (vi) n is an integer from 1 to about 5, wherein at least one carbon in (C)n has other than alkyl or hydroxy as a substituent and (C)n adjacent to Z has other than amino, SH, CN or hydroxy as R'; (vii) Z is selected from the group consisting of O, NR, S, SO, SO2, PO2R and POR; (viii) wherein any carbon, when disubstituted, having one substituent selected from the group consisting of hydroxy, amino, cyano and thiol, has the other substituent selected from the group consisting of hydrogen, alkyl, and aryl, whether this substituent is R' or R''; and to pharmaceutically acceptable salts of these compounds, stereoisomers and enantiomers thereof free from or mixed with other enantiomers or stereoisomers; and such compounds in compositions with a pharmaceutically-acceptable carrier thereof comprising a safe and effective amount of a subject skin lightening active.
摘要:
Compounds of structure (I), wherein W is selected from (a), and (b), where Q is oxygen or sulfur, R and R are hydrogen or alkyl, or R and R , together with the nitrogen atoms to which they are attached, define a radical of formula (II) or (III), R is selected from hydrogen, alkyl, haloalkyl, optionally substituted phenyl, hydroxyalkyl, aminoalkyl, carboxyalkyl, (alkoxycarbonyl)alkyl, and (alkylaminocarbonyl)alkyl; Z is -CH2-, oxygen, sulfur, or -NR where R is hydrogen or alkyl, L and L are selected from a valence bond, alkylene, propenylene, and propynylene, R , R , R , and R are independently selected from alkyl, haloalkyl, halogen, cyano, amino, alkoxycarbonyl, and dialkylaminocarbonyl, Y is selected from oxygen, -NR , where R is hydrogen or alkyl, and (c), where n = 0, 1, or 2, and R is alkyl, inhibit the biosynthesis of leukotrienes. These compounds are useful in the treatment or amelioration of allergic and inflammatory disease states.
摘要:
Compounds of the formula XI, XII and XIV are synthesised; these compounds are useful as intermediates in the synthesis of certain acyclic nucleotide analogs possessing antiviral activity.
摘要:
A process for preparing an hydroxyketone of formula (X); wherein Ar represents substituted phenyl, aromatic heterocyclic, or substituted aromatic heterocyclic; R and R independently represents hydrogen, C-1 to C-16 alkyl, aromatic, substituted aromatic, aromatic heterocyclic, substituted aromatic heterocyclic or C-1 to C-5 alkyl covalently bonded to Ar, with the provision that R and R are different. The process comprises contacting a compound of formula (V) with a solvent, a base and a chiral hydroxylating agent at a temperature of about -85 DEG C or less. Compounds of formulae (I) and (II) also are disclosed.
摘要翻译:制备式(X)的羟基酮的方法; 其中Ar表示取代的苯基,芳族杂环或取代的芳族杂环; R 1和R 2独立地表示氢,C 1至C 16烷基,芳族,取代的芳族,芳族杂环,取代的芳族杂环或与Ar共价结合的C-1至C-5烷基, R 1和R 2不同。 该方法包括在约-85℃或更低的温度下使式(V)化合物与溶剂,碱和手性羟基化试剂接触。 还公开了式(I)和(II)的化合物。
摘要:
Intermediates of structural formula (II), (III), (IV), (VIII), (XI), or (XII), wherein said compound has an asymmetric center(s) as indicated by the single asterisk (*) and the double asterisk (**) and wherein the compound is substantially free from compound (s) having the same chemical structure but having other absolute stereochemical configurations at the asterisked carbon centers, or a pharmaceutically acceptable salt thereof, wherein Ar represents phenyl, substituted phenyl, 3-thienyl, substituted 3-thienyl, 3-furanyl or substituted 3-furanyl; R represents alkyl or cycloalkyl; R1 represents H or alkyl; X represents chloro, bromo or iodo; X1 represents OH, chloro, bromo, iodo or P1 where P1 represents alkoxy-substituted phenyloxy, benzyloxy, substituted benzyloxy, acyloxy, phenylthio, substituted phenylthio or -NHP2 where P2 is an amino protecting group; and P represents H or a hydroxy protecting group and processes for making chemically pure, enantiomeric antifungal compounds.
摘要:
The invention concerns novel renin-inhibitory peptides which are useful for treating renin-associated hypertension, congestive heart failure, hyperaldosteronism, glaucoma and diseases caused by retroviruses. Processes for preparing the peptides novel intermediates in the processes, compositions containing them, and methods of using them are included. Also included is a diagnostic method which uses the compounds to determine the presence of renin-associated hypertension, or hyperaldosteronism.
摘要:
Method for the preparation of bicyclic ketones containing protected hydroxy groups having the general formula I wherein R1 represents the rest -CH2OR2 wherein R2 is benzyl, dimethyltert.-butyl-sylyl, diphenyl-tert.-butylsilyl, dimethylphenylsilyl, tribenzylsilyl or tetrahydropyranyl, wherein R2 has the same definition as hereabove, R4 is hydrogen or methyl and R5 a saturated or unsaturated alkyl rest with a straight or branched chain, substituted or not by fluorine, chlorine atomes, 1,2-methylene, 1,1-trimethylene or methoxy radicals or represents a rest CH2-X-aryl, wherein X is a rest CH2 or oxygen and aryl, a phenyl or heterocyclic rest which may substituted by methyl, methoxy radicals, atoms of fluorine, chlorine, bromine or a trifluoromethyl rest, or with R2, R4, R5 are defined as hereabove, and R3 has the signification given for R2 and is identical or different from R2 or forms with R2 the group wherein R6 and R7, identical or different, represent hydrogen, alkyl, cycloalkyl. It is characterized in that a ketonic acid containing protected hydroxy groups having the formula II is reacted with triphenyl-(phenyliminovinyliden)-phosphorane and then with alcohols. The carbacyclines thus obtained as intermediary products represent starting compounds for the preparation of prostacyclin having a pharmaceutical activity.
摘要:
Aromatic amides are described, having general formula (I), suitably substituted and having a high fungicidal activity, together with their use for controlling phytopathogenic fungi of important agricultural crops.
摘要:
Substituted aromatic sulfonamides of formula (I) pharmaceutical compositions and combinations comprising said compounds and the use of said compounds for manufacturing a pharmaceutical composition for the treatment or prophylaxis of a disease.