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公开(公告)号:WO2005021490A2
公开(公告)日:2005-03-10
申请号:PCT/EP2004009585
申请日:2004-08-27
Applicant: SYNGENTA PARTICIPATIONS AG , MUELLER URS
Inventor: MUELLER URS
IPC: A01N41/06 , A01N43/653 , C07C311/13 , C07D213/06 , C07D213/64 , C07D231/12 , C07D233/54 , C07D239/26 , C07D247/02 , C07D249/08 , C07D271/10 , C07D273/00 , C07D277/24 , C07D277/34 , C07D285/08 , C07D295/185 , C07C311/00
CPC classification number: C07D213/64 , A01N41/06 , A01N43/653 , C07C311/13 , C07D231/12 , C07D233/54 , C07D239/26 , C07D249/08 , C07D271/10 , C07D273/00 , C07D277/24 , C07D277/34 , C07D285/08 , C07D295/185
Abstract: The invention relates to N-sulfonyl-alpha-amino-acetic acid derivatives of the general formula (I): including the optical isomers thereof and mixtures of such isomers, wherein Ar1 and Ar2 independently of each other stand for an optionally substituted aryl or heteroaryl group, R1 and R2 stand independently of each other for hydrogen, optionally substituted C1-C5alkyl, optionally substituted C2-C5alkenyl, C-2C5alkynyl or optionally substituted C3C6Cycloalkyl; R3 designates hydrogen, C-3C5alkenyl, C3-C5 alkynyl or optionally substituted C-1C5alkyl; R4 is optionally substituted C1-C5alkyl, optionally substituted C-2C5alkenyl, C-2C5alkynyl or optionally substituted C-3C6 cycloalkyl; R5 and R6 are independently of each other hydrogen or optionally substituted C1-C5alkyl, optionally substituted C2-C5alkenyl, C-2C5alkynyl or optionally substituted C3-C6cycloalkyl; R7 and R8 are independently of each other hydrogen or optionally substituted C1-C5alkyl, optionally substituted C2-C5alkenyl, C2-C5alkynyl or optionally substituted C3-C6cycloalkyl; W designates a bridge selected from -O-, -S-, -SO-, -SO2- or is an -NH- or -N(C1-C5alkyl)- bridge; X designates a direct bond or a bridge selected from -O-, -S-, -SO-, -SO2- or is an -NHor -N(C1C5alkyl)- bridge; Y designates -OR9 or NR10R11; a and b independently of each other stand for a number 1, 2 or 3; and c stands for a number zero, 1 or 2; with R9,R10 and R11 being defined according to the claims. These compounds possess useful plant protecting properties and may advantageously be employed in agricultural practice for controlling or preventing the infestation of plants by phytopathogenic microorganisms, especially fungi.
Abstract translation: 本发明涉及通式(I)的N-磺酰基-α-氨基 - 乙酸衍生物:包括其旋光异构体和这些异构体的混合物,其中Ar 1和Ar 2彼此独立地表示任选取代的芳基或杂芳基 基团,R 1和R 2彼此独立地为氢,任选取代的C 1 -C 5烷基,任选取代的C 2 -C 5烯基,C 2 -C 5炔基或任选取代的C 3 -C 6环烷基; R 3表示氢,C 3 -C 5烯基,C 3 -C 5炔基或任选取代的C 1 -C 5烷基; R 4是任选取代的C 1 -C 5烷基,任选取代的C 2 -C 5烯基,C 2 -C 5炔基或任选取代的C 3 -C 6环烷基; R 5和R 6彼此独立地为氢或任选取代的C 1 -C 5烷基,任选取代的C 2 -C 5烯基,C 2 -C 5炔基或任选取代的C 3 -C 6环烷基; R 7和R 8彼此独立地为氢或任选取代的C 1 -C 5烷基,任选取代的C 2 -C 5烯基,C 2 -C 5炔基或任选取代的C 3 -C 6环烷基; W表示选自-O - , - S - , - SO - , - SO 2 - 或-NH-或-N(C 1 -C 5烷基) - 桥的桥; X表示直接键或选自-O - , - S - , - SO - , - SO 2 - 或是-NH-N(C 1 -C 5烷基) - 桥的桥; Y表示-OR9或NR10R11; a和b彼此独立,代表数字1,2或3; c代表数字零,1或2; 其中R 9,R 10和R 11如权利要求所定义。 这些化合物具有有用的植物保护性质,并且可有利地用于农业实践中以控制或防止植物病原微生物特别是真菌侵染植物。
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公开(公告)号:WO2004056824A3
公开(公告)日:2004-10-14
申请号:PCT/GB0305248
申请日:2003-12-03
Applicant: SYNGENTA LTD , SYNGENTA PARTICIPATIONS AG , CROWLEY PATRICK JELF , DOBLER MARKUS , MUELLER URS , WILLIAMS JOHN
Inventor: CROWLEY PATRICK JELF , DOBLER MARKUS , MUELLER URS , WILLIAMS JOHN
IPC: A01N43/90 , C07D471/04
CPC classification number: C07D471/04 , A01N43/90
Abstract: Fungicidal compositions of the general formula (1): wherein one of W, X, Y and Z is N and the others are CR ; R is H, halo, C1-4 alkyl, C1-4 alkoxy or halo(C1-4)alkyl, provided that when X is CH, Z is N, R is NHNH2, R is phenyl and R is Cl, W and Y are not both CCH3; one of R and R is NR R and the other is halo, C1-8 alkyl, C1-8 alkoxy, C1-8 alkylthio, C2-8 alkenyl, C2-8 alkynyl or cyano; R is aryl, heteroaryl, morpholino, piperidino or pyrrolidino; R and R are independently H, C1-8 alkyl, C2-8 alkenyl, C2-8 alkynyl, aryl, aryl(C1-8)-alkyl, C3-8 cycloalkyl, C3-8 cycloalkyl(C1-6)alkyl, heteroaryl, heteroaryl(C1-8)alkyl, NR R , provided that not both R and R are H or NR R , or R and R together form a C3-7 alkylene or C3-7 alkenylene chain optionally substituted with one or more C1-4 alkyl or C1-4 alkoxy groups, or, together with the nitrogen atom to which they are attached, R and R form a morpholine, thiomorpholine, thiomorpholine S-oxide or thiomorpholine S-dioxide ring or a piperazine or piperazine N-(C1-4)alkyl (especially N-methyl) ring; and R and R are independently H, C1-8 alkyl, C2-8 alkenyl, C2-8 alkynyl, aryl, aryl(Cl-8)-alkyl, C3-8 cycloalkyl, C3-8 cycloalkyl(C1-6)alkyl, heteroaryl or heteroaryl(C1-8)alkyl; any of the foregoing alkyl, alkenyl, alkynyl or cycloalkyl groups or moieties (other than for R ) being optionally substituted with halogen, cyano, C1-6 alkoxy C1-6 alkylcarbonyl, C1-6 alkoxycarbonyl, C1-6 haloalkoxy, C1-6 alkylthio, tri(C1-4)alkylsilyl, C1-6 alkylamino or C1-6 ialkylamino, any of the foregoing morpholine, thiomorpholine, piperidine, piperazine and pyrrolidine rings being optionally substituted with C1-4 alkyl (especially methyl), and any of the foregoing aryl or heteroaryl groups or moieties being optionally substituted with one or more substituents selected from halo, hydroxy, mercapto, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkoxy, C2-6 alkenyloxy, C2-6 alkynyloxy, halo(C1-6)alkyl, halo(C1-6)alkoxy, C1-6 alkylthio, halo(C1-6)alkylthio, hydroxy(C1-6)alkyl, C1-4 alkoxy(C1-6)alkyl, C 1-6 cycloalkyl, C3-6 cycloalkyl(C1-4)alkyl, phenoxy, benzyloxy, benzoyloxy, cyano, isocyano, thiocyanato, isothiocyanato, nitro, -NHCOR"', -NHCONR"'R"", -CONK"'R"", SO2R"', -OSO2R"', -COR"', -CR"'=NR" or -N=CR "'R"", in which R"' and R"" are independently hydrogen, C1-4 alkyl, halo-(C1-4)alkyl, C1-4 alkoxy, halo(C1
Abstract translation: 通式(1)的杀真菌组合物:其中W,X,Y和Z中的一个为N,其余为CR 8; R 8为H,卤素,C 1-4烷基,C 1-4烷氧基或卤代(C 1-4)烷基,条件是当X为CH时,Z为N,R为NHNH 2,R 1为苯基且R <2>是Cl,W和Y不同时为CCH3; R 2和R 2之一是NR 3 R 4,另一个是卤素,C 1-8烷基,C 1-8烷氧基,C 1-8烷硫基,C 2-8烯基,C 2-8炔基或氰基; R 1是芳基,杂芳基,吗啉代,哌啶子基或吡咯烷子基; R 3和R 4独立地是H,C 1-8烷基,C 2-8烯基,C 2-8炔基,芳基,芳基(C 1-8) - 烷基,C 3-8环烷基,C 3-8环烷基 -6)烷基,杂芳基,杂芳基(C 1-8)烷基,NR 5 R 6,条件是不是R 3和R 4都不是H或NR 5 R 6, ,或其中R 3和R 4一起形成任选被一个或多个C 1-4烷基或C 1-4烷氧基取代的C 3-7亚烷基或C 3-7亚烯基链,或与氮原子一起 R 3和R 4形成吗啉,硫代吗啉,硫代吗啉S-氧化物或硫代吗啉S-二氧化环或哌嗪或哌嗪N-(C 1-4)烷基(特别是N-甲基) 环; R 5和R 6独立地为H,C 1-8烷基,C 2-8烯基,C 2-8炔基,芳基,芳基(C 1-8)烷基,C 3-8环烷基,C 3-8环烷基( C 1-6)烷基,杂芳基或杂芳基(C 1-8)烷基; 氰基,C 1-6烷氧基,C 1-6烷基羰基,C 1-6烷氧基羰基,C 1 -C 6烷氧羰基,C 1-6烷氧基羰基, 6卤代烷氧基,C 1-6烷硫基,三(C 1-4)烷基甲硅烷基,C 1-6烷基氨基或C 1-6烷基氨基,任何上述吗啉,硫代吗啉,哌啶,哌嗪和吡咯烷环任选被C 1-4烷基取代 甲基),并且任何前述芳基或杂芳基任选被一个或多个选自卤素,羟基,巯基,C 1-6烷基,C 2-6烯基,C 2-6炔基,C 1-6烷氧基, C 2-6烯氧基,C 2-6炔氧基,卤代(C 1-6)烷基,卤代(C 1-6)烷氧基,C 1-6烷硫基,卤代(C 1-6)烷硫基,羟基(C 1-6)烷基, 烷氧基(C 1-6)烷基,C 1-6环烷基,C 3-6环烷基(C 1-4)烷基,苯氧基,苄氧基,苯甲酰氧基,氰基,异氰基,氰硫基,异硫氰酸根合,硝基,-NHCOR“ R“”,“ON”,“R”“,SO2R”',-OSO R“', - ”“,”NR“或-N = CR”'R“”,其中R“'和R”“独立地为氢,C 1-4烷基,卤代(C1- 4)烷基,C 1-4烷氧基,卤代(C 1〜
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公开(公告)号:WO2009007115A8
公开(公告)日:2010-01-21
申请号:PCT/EP2008005633
申请日:2008-07-10
Applicant: SYNGENTA PARTICIPATIONS AG , SYNGENTA LTD , SELLES PATRICE , CLARKE ERIC DANIEL , ELLIOTT ALISON CLARE , FAWKE DELPHINE RAYMONDE SUZANN , HUETER OTTMAR FRANZ , MUELLER URS , RENOLD PETER , TARGETT SARAH MARGARET , WHITTINGHAM WILLIAM GUY
Inventor: SELLES PATRICE , CLARKE ERIC DANIEL , ELLIOTT ALISON CLARE , FAWKE DELPHINE RAYMONDE SUZANNE , HUETER OTTMAR FRANZ , MUELLER URS , RENOLD PETER , TARGETT SARAH MARGARET , WHITTINGHAM WILLIAM GUY
IPC: C07D451/02 , A01N43/90 , A01P3/00 , A01P5/00 , A01P7/00 , A01P9/00 , C07D451/04 , C07D451/06 , C07D519/00
CPC classification number: C07D519/00 , A01N43/90 , C07D451/02 , C07D451/04 , C07D451/06
Abstract: Compounds of formula (I) wherein the substituents have the meanings assigned to them in claim 1, are useful as pesticides.
Abstract translation: 其中取代基具有权利要求1中赋予它们的含义的式(I)化合物可用作农药。
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公开(公告)号:DE60312889T2
公开(公告)日:2008-01-17
申请号:DE60312889
申请日:2003-12-03
Applicant: SYNGENTA LTD , SYNGENTA PARTICIPATIONS AG
Inventor: CROWLEY PATRICK JELF , DOBLER MARKUS , MUELLER URS , WILLIAMS JOHN S
IPC: C07D487/04 , A01N43/90 , C07D471/04
Abstract: Fungicidal compounds having the general formula (1): formula (1) wherein W, Z and one of X and Y are N and the other one of X and Y is CR 8 ; R 8 is H, halo, C 1-4 alkyl, C 1-4 alkoxy, C 1-4 alkylthio or halo(C 1-4 )alkyl; R and R 2 are independently H, halo, C 1-8 alkyl, C 1-8 alkoxy, C 1-8 alkylthio, C 2-8 alkenyl, C 2-8 alkynyl, cyano or NR 3 R 4 , provided that at least one of R and R 2 is NR 3 R 4 ; R 1 is halo, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, C 3-8 cycloalkyl, C 3-8 cycloalkyl(C 1-6 )-alkyl, C 1-8 alkoxy, C 1-8 alkylthio, aryl, aryloxy, arylthio, heteroaryl, heteroaryloxy, heteroarylthio, aryl(C 1-4 )alkyl, aryl(C 1-4 )alkoxy, heteroaryl(C 1-4 )alkyl, heteroaryl(C 1-4 )alkoxy, aryl(C 1-4 )alkylthio, heteroaryl(C 1-4 )alkylthio, morpholino, piperidino or pyrrolidino; R 3 and R 4 are independently H, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 alkynyl, aryl, aryl(C 1-8 )-alkyl, C 3-8 cycloalkyl, C 3-8 cycloalkyl(C 1-6 )alkyl, heteroaryl, heteroaryl(C 1-8 )alkyl, NR 5 R 6 , provided that not both R 3 and R 4 are H or NR 5 R 6 , or R 3 and R 4 together form a C 3-7 alkylene or C 3-7 alkenylene chain optionally substituted with one or more C 1-4 alkyl or C 1-4 alkoxy groups, or, together with the nitrogen atom to which they are attached, R 3 and R 4 form a morpholine, thiomorpholine, thiomorpholine S-oxide or thiomorpholine S-dioxide ring or a piperazine or piperazine N-(C 1-4 )alkyl (especially N-methyl) ring; and R 5 and R 6 are independently H, C 1-8 alkyl, C 2-8 alkenyl, C 2-8 -alkynyl, aryl, aryl(C 1-8 )alkyl, C 3-8 cycloalkyl, C 3-8 cycloalkyl(C 1-6 )alkyl, heteroaryl or heteroaryl(C 1-8 )alkyl; any of the foregoing alkyl, alkenyl, alkynyl or cycloalkyl groups or moieties (other than for R 8 ) being optionally substituted with halogen, cyano, C 1-6 alkoxy, C 1-6 alkylcarbonyl, C 1-6 alkoxycarbonyl, C 1-6 haloalkoxy, C 1-6 alkylthio, tri(C 1-4 )alkylsilyl, C 1-6 alkylamino or C 1-6 dialkylamino, any of the foregoing morpholine, thiomopholine, piperidine, piperazine and pyrrolidine rings being optionally substituted with C 1-4 alkyl (especially methyl), and any of the foregoing aryl or heteroaryl groups or moieties being optionally substituted with one or more substituents selected from halo, hydroxy, mercapto, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 alkoxy, C 2-6 alkenyloxy, C 2-6 alkynyloxy, halo(C 1-6 )alkyl, halo(C 1-6 )alkoxy, C 1-6 alkylthio, halo(C 1-6 )alkylthio, hydroxy(C 1-6 )alkyl, C 1-4 alkoxy(C 1-6 )alkyl, C 3-6 cycloalkyl, C 3-6 cycloalkyl(C 1-4 )alkyl, phenoxy, benzyloxy, benzoyloxy, cyano, isocyano, thiocyanato, isothiocyanato, nitro, -NR'''R'''', NHCOR''', -NHCONR'''R'''', -CONR'''R'''', -SO 2 R''', -OSO 2 R''', -COR''', -CR'''-NR'''' or -N-CR '''R'''', in which R''' and R'''' are independently hydrogen, C 1-4 alkyl, halo(C 1-4 )alkyl, C 1-4 alkoxy, halo(C 1-4 )alkoxy, C 1-4 alkylthio, C 3-6 cycloalkyl, C 3-6 cycloalkyl(C 1-4 )alkyl, phenyl or benzyl, the phenyl and benzyl groups being optionally substituted with halogen, C 1-4 alkyl or C 1-4 alkoxy.
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公开(公告)号:PT1575956E
公开(公告)日:2007-07-03
申请号:PT03780333
申请日:2003-12-03
Applicant: SYNGENTA PARTICIPATIONS AG , SYNGENTA LTD
Inventor: CROWLEY PATRICK JELF , DOBLER MARKUS , MUELLER URS , WILLIAMS JOHN
IPC: A01N43/90 , C07D487/04 , C07D471/04
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公开(公告)号:BR0317724A
公开(公告)日:2005-11-22
申请号:BR0317724
申请日:2003-12-03
Applicant: SYNGENTA LTD , SYNGENTA PARTICIPATIONS AG
Inventor: CROWLEY PATRICK JELF , DOBLER MARKUS , MUELLER URS , WILLIAMS JOHN
IPC: A01N43/90 , C07D471/04
Abstract: The naphthyridine derivatives of formula (I) a and method of combating or controlling phytopathogenic fungi which comprises applying the compounds of formula (I) to a plant, to a seed of a plant and to the locus of the plant.
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公开(公告)号:GT200300299A
公开(公告)日:2004-07-27
申请号:GT200300299
申请日:2003-12-23
Applicant: SYNGENTA PARTICIPATIONS AG , SYNGENTA LTD
Inventor: CROWLEY PATRICK JELF , DOBLER MARKUS , MUELLER URS , WILLIAMS JOHN
IPC: A01N43/42 , A01N43/48 , A01N43/64 , A01N43/90 , C07D471/04
Abstract: LA PRESENTE INVENCION SE REFIERE A COMPUESTOS DE LA FORMULA GENERAL I EN LA QUE R,R1,R2,W,X,Y,Z, SON GRUPOS FUNCIONALES DESCRITOS EN EL EXPEDIENTE. ESTOS COMPUESTOS SON DE UTILIDAD PARA COMBATIR HONGOS, ESPECIALMENTE INFECCIONES FUNGICAS DE PLANTAS POR LO QUE SU IMPORTANCIA EN LA AGRICULTURA ES ESPECIAL.
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公开(公告)号:AU2003292381A8
公开(公告)日:2004-07-14
申请号:AU2003292381
申请日:2003-12-03
Applicant: SYNGENTA LTD , SYNGENTA PARTICIPATIONS AG
Inventor: MUELLER URS , WILLIAMS JOHN , CROWLEY PATRICK JELF , DOBLER MARKUS
IPC: A01N43/90 , C07D471/04
Abstract: The naphthyridine derivatives of formula (I) a and method of combating or controlling phytopathogenic fungi which comprises applying the compounds of formula (I) to a plant, to a seed of a plant and to the locus of the plant.
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公开(公告)号:CA2510376A1
公开(公告)日:2004-07-08
申请号:CA2510376
申请日:2003-12-03
Applicant: SYNGENTA LTD , SYNGENTA PARTICIPATIONS AG
Inventor: DOBLER MARKUS , CROWLEY PATRICK JELF , MUELLER URS , WILLIAMS JOHN
IPC: C07D471/04 , C07D487/04 , A01N43/90
Abstract: Fungicidal compounds having the general formula (1): formula (1) wherein W, Z and one of X and Y are N and the other one of X and Y is CR8; R8 is H, halo, C1-4 alkyl, C1-4 alkoxy, C1-4 alkylthio or halo(C1-4)alkyl; R and R2 are independently H, halo, C1-8 alkyl, C1-8 alkoxy, C1-8 alkylthio, C2-8alkenyl, C2-8 alkynyl, cyano or NR3R4, provided that at least one of R and R2 is NR3R 4; R1 is halo, C1-8 alkyl, C2-8 alkenyl, C2-8alkynyl, C3-8 cycloalkyl, C3-8 cycloalkyl(C1-6)~-alkyl, C1-8 alkoxy, C1-8 alkylthio, aryl, aryloxy, arylthi o, heteroaryl, heteroaryloxy, heteroarylthio, aryl(C1-4)alkyl, aryl(C1-4)alkoxy , heteroaryl(C1-4)alkyl, heteroaryl~(C1-4)alkoxy, aryl(C1-4)alkylthio, heteroaryl(C1-4)alkylthio, morpholino, piperidino or pyrrolidino; R3 and R4 are independently H, C1-8 alkyl, C2-8 alkenyl, C2-8 alkynyl, aryl, aryl(C1-8 )~- alkyl, C3-8cycloalkyl, C3-8 cycloalkyl(C1-6)alkyl, heteroaryl, heteroaryl(C 1- 8)alkyl, NR5R6, provided that not both R3 and R4 are H or NR5R6, or R3 and R 4 together form a C3-7 alkylene or C3-7 alkenylene chain optionally substitute d with one or more C1-4 alkyl or C1-4 alkoxy groups, or, together with the nitrogen atom to which they are attached, R3 and R4 form a morpholine, thiomorpholine, thiomorpholine S-oxide or thiomorpholine S-dioxide ring or a piperazine or piperazine N-(C1-4)alkyl (especially N-methyl) ring; and R5 an d R6 are independently H, C1-8 alkyl, C2-8 alkenyl, C2-8 alkynyl, aryl, aryl(C 1- 8)~alkyl, C3-8 cycloalkyl, C3-8 cycloalkyl(C1-6)alkyl, heteroaryl or heteroaryl(C1-8)alkyl; any of the foregoing alkyl, alkenyl, alkynyl or cycloalkyl groups or moieties (other than for R8) being optionally substitut ed with halogen, cyano, C1-6 alkoxy, C1-6alkylcarbonyl, C1-6 alkoxycarbonyl, C1 -6 haloalkoxy, C1-6 alkylthio, tri(C1-4)alkylsilyl, C1-6 alkylamino or C1-6 dialkylamino, any of the foregoing morpholine, thiomorpholine, piperidine, piperazine and pyrrolidine rings being optionally substituted with C1-4 alky l (especially methyl), and any of the foregoing aryl or heteroaryl groups or moieties being optionally substituted with one or more substituents selected from halo, hydroxy, mercapto, C1-6alkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkoxy, C2-6 alkenyloxy, C2-6 alkynyloxy, halo(C1-6)alkyl, halo(C1-6)alkoxy, C1-6 alkylthio, halo(C1-6)alkylthio, hydroxy(C1-6)alkyl, C1-4 alkoxy(C1- 6)alkyl, C3-6 cycloalkyl, C3-6cycloalkyl(C1-4)alkyl, phenoxy, benzyloxy, benzoyloxy, cyano, isocyano, thiocyanato, isothiocyanato, nitro, -NR"'R"", NHCOR"', -NHCONR"'R"", -CONR"'R"", -SO2R"', -OSO2R"', -COR"', -CR"'=NR"" or - N=CR "'R"", in which R"' and R"" are independently hydrogen, C1-4 alkyl, hal o- (C1-4)alkyl, C1-4 alkoxy, halo(C1-4)alkoxy, C1-4 alkylthio, C3-6 cycloalkyl, C3-6 cycloalkyl(C1-4)alkyl, phenyl or benzyl, the phenyl and benzyl groups being optionally substituted with halogen, C1-4 alkyl or C1-4 alkoxy.
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公开(公告)号:CA2509451A1
公开(公告)日:2004-07-08
申请号:CA2509451
申请日:2003-12-03
Applicant: SYNGENTA LTD , SYNGENTA PARTICIPATIONS AG
Inventor: WILLIAMS JOHN , CROWLEY PATRICK JELF , MUELLER URS , DOBLER MARKUS
IPC: C07D471/04 , A01N43/90
Abstract: Fungicidal compounds of general formula (1) wherein R, R1, R2, W, X, Y and Z are as defined in the specification.
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