Synthesis and anti-oomycete activity of novel quinazolin- and benzothiazol-6-yloxyacetamides: Potent aza-analogs and five-ring analogs of quinoline fungicides
摘要:
Novel quinazolin-and benzothiazol-6-yloxyacetamides show excellent in vivo activity against the three economically most important Oomycete pathogens Phytophthora infestans, Plasmopara viticola and Pythium ultimum. They are polar analogs of known quinolin-6-yloxyacetamides, which are not active against the soil-borne damping-off disease caused by Pythium ultimum. The Bogert quinazoline synthesis, an almost forgotten heterocyclization technique, proved to be highly useful for the concise construction of required quinazolin-6-ol building blocks. (C) 2015 Elsevier Ltd. All rights reserved.
Three novel, optically active, 6-substituted 2-(aminomethyl)chromans were synthesized from readily available chroman 2-carboxylic acid precursors. These chroman-containing primary amines are useful building blocks for the synthesis of chroman-derived pharmaceutical agents.
Compounds of the general formula
wherein the substituents are as defined in claim 1, are useful as fungicides.
通式为的化合物,其中取代基如权利要求书中定义的那样,可用作杀真菌剂。
Synthesis of novel 3,4,6-trisubstituted quinolines enabled by a Gould-Jacobs cyclization
作者:Stephan Trah、Clemens Lamberth
DOI:10.1016/j.tetlet.2017.01.042
日期:2017.2
several novel, so far undescribed 3,4,6-trisubstituted quinoline derivatives. They all bear substituents which are well-suited for further transformations, e.g. carboxylic acid or ester functions, halogens, terminal alkynes and hydroxylgroups. The synthesis of a highly active 3,4-disubstituted quinolin-6-yloxyacetamide fungicide gives proof of the manifold manipulations which are possible with these interesting