摘要:
Compounds having cytotoxic and/or anti-mitotic activity are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein R1, R2, R3, R4 and R5 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed. Also disclosed are compositions having the structure: (T)-(L)-(D), wherein (T) is a targeting moiety, (L) is an optional linker, and (D) is a compound having structure (I).
摘要:
Compounds of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 independently of one another are hydrogen, halogen, methyl or ethyl,R.sub.4 is C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl or (C.sub.3 -C.sub.6 -cycloalkyl)-methyl, and either(i) R.sub.5 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.3 -C.sub.6 -cycloalkyl or (C.sub.3 -C.sub.6 -cycloalkyl)-methyl, whileR.sub.6 is C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.3 -C.sub.6 -cycloalkyl or (C.sub.3 -C.sub.6 -cycloalkyl)-methyl, or(ii) R.sub.5 and R.sub.6 together with the nitrogen atom to which they are attached represent a 5- or 6-membered heterocyclic ring optionally substituted by one or more C.sub.1 -C.sub.4 -alkyl groups and optionally including an oxygen or sulphur atom within the ring system, possess valuable insecticidal and in particular acaricidal properties.
摘要:
Plant parasitic nematodes are controlled by ureidosulfenyl carbamates such as 2-(dimethylamino)-N-[[N-methyl-N-[N-methyl-N-(2-propynylaminocarbonyl)aminothio]aminocarbonyloxy]]-2-oxoethanimidothioic acid, methyl ester.
wherein R1 is hydrogen or alkyl; R2 is alkyl or monocyclic aryl; R3 and R4 individually are hydrogen, alkyl or aryl; and R5 is (a) -NR6R7 wherein R6 is hydrogen or alkyl and R7 is alkyl or monocyclic aryl; or (b) -OR8 wherein R8 is monocyclic aryl.
摘要:
N-chlorothio ureas are produced by the reaction of sulfur dichloride and an urea having at least one hydrogen substituted on an urea nitrogen atom in the presence of an acid acceptor. The N-chlorothio ureas are useful intermediates in the preparation of pesticides.
摘要:
Compounds having cytotoxic and/or anti-mitotic activity are disclosed. The compounds have the following structure (I): including stereoisomers, pharmaceutically acceptable salts and prodrugs thereof, wherein R1, R2, R3, R4 and R5 are as defined herein. Methods associated with preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed. Also disclosed are compositions having the structure: (T)-(L)-(D), wherein (T) is a targeting moiety, (L) is an optional linker, and (D) is a compound having structure (I).
摘要:
Sulfonamides, such as N-[N-(2-chloro-5-(trifluoromethyl)phenyl]-N-[2,4-dinitro-6-(trifluoromethyl)phenyl]aminothio]-N,4-dimethylbenzenesulfonamide, are useful for control of arthropod pests of plants and animals and fungus disease of plants.
摘要:
N-chlorothio ureas are produced by the reaction of sulfur dichloride and a urea having at least one hydrogen substituted on a urea nitrogen atom in the presence of an acid acceptor. The N-chlorothio ureas are useful intermediate in the preparation of pesticides.
WHEREIN R1 and R4 are individually aryl of six to 14 carbon atoms optionally substituted with alkyl groups, halogen atoms, nitro groups, alkoxy groups, alkylthio groups or dialkylamino groups; R2 and R3 are individually hydrogen or alkyl of one to four carbon atoms are used as insecticides.