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Design, synthesis and structure–activity relationships of novel ALS inhibitors
Author(s) -
Ren TianRui,
Yang HongWei,
Gao Xu,
Yang XinLing,
Zhou JiaJu,
Cheng FuHeng
Publication year - 2000
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/(sici)1526-4998(200003)56:3<218::aid-ps116>3.0.co;2-9
Subject(s) - bioassay , sulfonylurea , thio , lead compound , chemistry , butane , structure–activity relationship , active compound , stereochemistry , biological activity , combinatorial chemistry , in vitro , organic chemistry , biochemistry , biology , microbiology and biotechnology , ecology , insulin , catalysis
The paper describes the biophore models of sulfonylurea, imidazolinone, triazolopyrimidinesulfonamide and 5‐pyrimidyltriazolo‐3‐sulfonamides established by the Apex‐3D method. A series of N ‐phenylsulfonyl‐ N ′‐(thiadiazol‐2‐yl)oxamides and three types of triazolopyrimidinesulfonamide were synthesised and their herbicidal activities determined to assess the validity of the model. In general, the model gave useful leads to activity, although the actual level was not always predicted accurately. In only a few cases did compounds predicted as being active prove to be inactive in the bioassay, and compounds with little or no activity were clearly indicated. As a result of this work, the compound N , N ′‐[1‐(5,7‐dimethyl‐1,2,4‐triazolo[1,5‐ a ]pyrimidin‐2‐yl‐thio)butane‐2,3‐di‐imino]bis(2‐chlorobenzenesulfonamide) was selected as showing good activity against a range of species, and will be used as a lead for further development. © 2000 Society of Chemical Industry