[EN] OXADIAZOLE DERIVATIVE, PREPARATION METHOD THEREFOR AND USE THEREOF [FR] DÉRIVÉ D'OXADIAZOLE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION [ZH] 一种噁二唑衍生物及其制备方法和用途
Naphthalene was used as a model compound in order to study the anaerobic pathway of polycyclic aromatic hydrocarbon degradation. Previously we had determined that carboxylation is an initial step for anaerobic metabolism of naphthalene, but no other intermediate metabolites were identified (Zhang & Young 1997). In the present study we further elucidate the pathway with the identification of six novel naphthalene metabolites detected when cultures were fed naphthalene in the presence of its analog 1-fluoronaphthalene. Results from cultures supplemented with either deuterated naphthalene or non-deuterated naphthalene plus [C-13]bicarbonate confirm that the metabolites originated from naphthalene. Three of these metabolites were identified by comparison with the following standards: 2-naphthoic acid (2-NA), 5,6,7,8-tetrahydro-2-naphthoic acid, and decahydro-2-naphthoic acid. The presence of 5,6,7,8-tetrahydro-2-NA as a metabolite of naphthalene degradation indicates that the first reduction reaction occurs at the unsubstituted ring, rather than the carboxylated ring. The overall results suggest that after the initial carboxylation of naphthalene, 2-NA is sequentially reduced to decahydro-2-naphthoic acid through 5 hydrogenation reactions, each of which eliminated one double bond. Incorporation of deuterium atoms from D2O into 5,6,7,8-tetrahydro-2-naphthoic acid suggests that water is the proton source for hydrogenation.
Compounds of the formula
and pharmaceutically acceptable salts thereof, wherein Q
1
and R
1
are defined herein, inhibit the IGF-1R enzyme and are useful for the treatment and/or prevention of various diseases and conditions that respond to treatment by inhibition of tyrosine kinases.
Compounds of the formula
and pharmaceutically acceptable salts thereof, wherein Q
1
and R
1
are defined herein, inhibit the IGF-1R enzyme and are useful for the treatment and/or prevention of various diseases and conditions that respond to treatment by inhibition of tyrosine kinases.
Compounds of the formula
and pharmaceutically acceptable salts thereof, wherein Q
1
and R
1
are defined herein, inhibit the IGF-1R enzyme and are useful for the treatment and/or prevention of various diseases and conditions that respond to treatment by inhibition of tyrosine kinases.
S-substituted carbonyl substituted betathioacrylamide biocides and fungicides
申请人:ROHM AND HAAS COMPANY
公开号:EP0440329A1
公开(公告)日:1991-08-07
Novel compounds represented by the formula
wherein R1 is an organic radical having at least 2 carbon atoms;
R2 is an organic radical ; and
A = CO, CH2, or CHR3 where R3 is unsubstituted or substituted alkyl ; and
Z1 and Z2 are each independently hydrogen, halogen, or (C1-C4) alkyl are disclosed for use as a microbicide.
(EN) 2-Acetonaphthones are prepared by heating a ketal or enol ethers of acetyl-substituted benzalacetone at a temperature effective to cyclize the compound and form said 2-acetonaphthones.(FR) On prépare des 2-acétonaphtones en chauffant un cétal ou des éthers d'énol de benzalacétone à substitution acétyle à une température efficace pour cycliser le composé et former lesdites 2-acétonaphtones.