摘要:
Compounds of general formula (1) are described wherein =W- is (1) =C(Y)- where Y is a halogen atom, or an alkyl or -XRa group where X is -O-, -S(O)¿m?-[where m is zero or an integer of value 1 or 2], or -N(R?b¿)- where Rb is a hydrogen atom or an optionally substituted alkyl group or, (2) =N; L is a -XR, [where R is an optionally substituted alkyl, alkenyl, cycloalkyl or cycloalkenyl group], -C(R?11)=C(R1)(R2¿) or [-CH(R11)]nCH(R1)(R2) group where R11 is a hydrogen or a fluorine atom or a methyl group, and R?1 and R2¿, which may be the same or different, is each a hydrogen or fluorine atom or an optionally substituted alkyl, alkenyl, alkynyl, alkoxy, alkylthio, -CO¿2 R?8, [where R8 is a hydrogen atom or an optionally substituted alkyl, aralkyl, or aryl group], -CONR9R10 [where R?9 and R10¿, which may be the same or different are as defined for R8], -CSNR9R10, -CN or -NO¿2?group, or R?1 and R2¿ together with the C atom to which they are attached are linked to form an optionally substituted cycloalkyl or cycloalkenyl group and n is zero or the integer 1; Z is (1) a group -C(R?3)(R4)C(R5)(R6)(R7) or -C(R?4)=C(R5)(R6¿) where R3 is a hydrogen or a fluorine atom or an optionally substituted straight or branched alkyl group; R4 is a group selected from -XaL1R12 [where Xa is as defined above for X, L1 is a linker group and R12 is a hydrogen atom or a cycloaliphatic, heterocycloaliphatic, or monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen, sulphur or nitrogen atoms], -Alk1R12 [where Alk1 is an optionally substituted straight or branched alkenyl or alkynyl chain optionally containing one or more -O- or -S- atoms or -N(Rb)-, carbocyclic or heteroatom-containing groups], -CH¿2L?1R12a [where R12a is as defined for R12 but is not a hydrogen atom]; -XaR12a; or -C(Xb)R12a [where Xb is an oxygen or sulphur atom]; R5 is a -(CH¿2?)pAr group where p is zero or an integer 1, 2 or 3 and Ar is a monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen, sulphur or nitrogen atoms; R?6¿ is a hydrogen or a fluorine atom or an optionally substituted alkyl group; R7 is a hydrogen or a fluorine atom or an ORc group where Rc is a hydrogen atom or an optionally substituted alkyl or alkenyl group, or an alkoxyalkyl, alkanoyl, formyl, carboxamido or thiocarboxamido group; or Z is (2) a group -C(R?4)C(R5)(R6)(R7¿) where R4 is a group =CH¿2?, or =CH(L?1)¿n-R12; and the salts, solvates, hydrates, prodrugs and N-oxides thereof. Compounds according to the invention are phosphodiesterase type IV inhibitors and are useful in the prophylaxis and treatment of disease such as asthma where an unwanted inflammatory response or muscular spasm is present.
摘要:
A naphthoic acid derivative represented by the following general formula or a salt thereof: wherein R i , R 2 and R 3 are each independently a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxy group, a lower alkanoyloxy group, a hydroxy-lower alkyl group, a lower alkoxy-lower alkyl group, a lower alkanoyloxy-lower alkyl group or an aralkyloxy group;
R 4 is a hydrogen atom or a lower alkyl group; R 5 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaromatic group; X is a group
a cycloalkylene group, a bivalent nitrogen-containing heterocyclic group, or a group
-R 8 - NH- or -NH-R 8 , where R 6 and R 7 are each a hydrogen atom or a lower alkyl group and R 8 is a cycloalkylene group, or R 6 and R 7 , together with R 4 , may form an alkylene group of 1-3 carbon atoms; Y is -S(O)p-, -(CH 2 ) n - or -0-; Z is a substituted or unsubstituted alkylene group or a single bond; ℓ is an integer of 0-4; m is an integer of 0-8; n is 0 or 1; p is an integer of 0-2; and g is 0 or 1. The compound is useful as an antiallergic agent.
摘要:
Cognitive defeciencies or neurological dysfunction in mammals are treated with α,α-disubstituted aromatic or heteroaromatic compounds. The compounds have the formula: or a salt thereof wherein X and Y are taken together to form a saturated or unsaturated carbocyclic or heterocyclic first ring and the shown carbon in said ring is a to at least one additional aromatic ring or heteroaromatic ring fused to the first ring; one of Het' or Het 2 is 2, 3, or 4-pyridyl or 2, 4, or 5-pyrimidinyl and the other is selected from (a) 2, 3, or 4-pyridyl, (b) 2, 4, or 5-pyrimidinyl, (c) 2-pyrazinyl, (d) 3, or 4-pyridazinyl, (e) 3, or 4-pyrazolyl, (f) 2, or 3-tetrahydrofuranyl, and (g) 3-thienyl.
摘要:
This invention relates to compounds of the general formula (I) and physiologically acceptable salts and solvates thereof where Ar represents where R 3 is a bond or a straight or branched C 1 2 alkylene group, R 4 is a hydroxy group or a group R 5 NH-where R 5 represents a group CH 3 SO 2 -, HCO-or NH 2 CO-, where R 6 is a chlorine atom or the group F 3 C-, k represents an integer from 1 to 8, m represents zero or an integer from 2 to 7 and n represents an integer from 2 to 7 with the proviso that the sum total of k. m and n is 4 to 12; R 1 and R 2 each represents a hydrogen atom or a methyl or ethyl group with the proviso that the sum total of carbon atoms in R 1 and R 2 is not more than 2; R 30 represents hydrogen or C 12 alkyl; X represents an oxygen or sulphur atom: and Y and Q may each represent a bond or an oxygen or sulphur atom with the provisos that at least one of Y and Q represents an oxygen or sulphur atom and when Y is a bond m is zero, or when Y represents an oxygen or sulphur atom m is an integer from 2 to 7: P represents a phenyl group otionally substituted by one or more substituents selected from halogen atoms, or the groups C 1 3 alkyl, C 1 3 alkoxy, hydroxy, -CH 2 OH-, -(CH 2 ) 2 OH, -CO 2 H. -CO 2 CH 3 , ·CO 2 (CH 2 )- 2 CH 3 , -R 7 , COR 7 , -NHCOR s and ·NR 9 SO 2 R 10 ; where R 7 represents an amino, aminoC 1 3 alkyl, aminoC, 3 dialkyl, pyrrolidino. piperidino. hexamethyleneimino, piperazino, N-methylpiperazino or morpholino group; R 8 represents a hydrogen atom or a C, 4 alkyl, C, 4 alkoxy, phenyl or amino group; R 9 represents a hydrogen atom or a methyl group; R 10 represents a methyl, phenyl, amino or dimethylamino group; or P represents a pyridyl group optionally substituted by one or two substitutents selected from halogen atoms or hydroxy, C, 3 alkyl and C 1 3 alkoxy groups. The compounds have a stimulant action at β 2 -adrenoreceptors and are useful, in particular, in the treatment of diseases associated with reversible airways obstruction such as asthma and chronic bronchitis.
摘要:
A process for preparing a compound of the formula : wherein
R 2 is lower aliphatic hydrocarbon group which may be substituted with suitable substituent(s), cyclo(lower)alkyl or cyclo(lower)alkenyl; or a salt thereof, which comprises reacting a compound of the formula :
wherein
R 2 is as defined above and Y is halogen, or a salt thereof, with a salt of HSCN. The obtained compounds are intermediates which can be used for preparing cephem compounds.