Discovery and SAR of small molecule PAR1 antagonists
摘要:
High-throughput screening resulted in the identication of a small molecule inhibitor of PAR1. Optimisation of the initial hit led to the discovery of compounds 34 and 49, which displayed antithrombotic activity in an arteriovenous shunt model in the rat after iv administration. (C) 2009 Elsevier Ltd. All rights reserved.
Structure–activity relationship of uniconazole, a potent inhibitor of ABA 8′-hydroxylase, with a focus on hydrophilic functional groups and conformation
摘要:
The plant growth retardant S-(+)-uniconazole (UNI-OH) is a strong inhibitor of abscisic acid (ABA) 8'-hydroxylase, a key enzyme in the catabolism of ABA, a plant hormone involved in stress tolerance, stomata] closure, flowering, seed dormancy, and other physiological events. In the present study, we focused on the two polar sites of UNI-OH and synthesized 3- and 2 ''-modified analogs. Conformational analysis and an in vitro enzyme inhibition assay yielded new findings on the structure-activity relationship of UNI-OH: (1) by substituting imidazole for triazole, which increases affinity to heme iron, we identified a more potent compound, IMI-OH; (2) the polar group at the 3-position increases affinity for the active site by electrostatic or hydrogen-bonding interactions; (3) the conformer preference for a polar environment partially contributes to affinity for the active site. These findings should be useful for designing potent azole-containing specific inhibitors of ABA 8'-hydroxylase. (C) 2007 Elsevier Ltd. All rights reserved.
The invention discloses a homopiperony lamine compound which has a structural general formula I as follows as shown in the specification:
wherein definitions of substituents in the formula are as shown in the specification. The compound shown as the general formula I has broad-spectrum bactericidal and insecticidal activity in the field of agriculture. The compound shown as the general formula I has a good prevention effect on various germs such as cucumber downy mildew, wheat powdery mildew,
puccinia sorghi,
rice blast and cucumber gray mold, and particularly, still has the good prevention and control effect on the cucumber downy mildew, the
puccinia sorghi
and the wheat powdery mildew at a lower dosage. At the same time, a part of compound has better insecticidal activity, and can be used for preventing and controlling various insect pests such as diamondback moths,
myzus persicae,
armyworms and
tetranychus cinabarinus
boisdu.
PYRAZOLYL PYRIMIDINAMINE COMPOUND AND APPLICATION THEREOF
申请人:SHENYANG SINOCHEM AGROCHEMICALS R&D CO., LTD.
公开号:US20160332991A1
公开(公告)日:2016-11-17
Disclosed are pyrazolyl pyrimidinamine compounds with structures as shown in Formula I:
The definitions of each of the substituents can be seen in the description.
The compounds of present invention have a broad spectrum of bactericidal, insecticidal and acaricidal activity, and have good control effect on downy mildew of cucumber, powdery mildew of wheat, corn rust, anthracnosis of cucumber and the like, and especially have better control effect on downy mildew of cucumber, powdery mildew of wheat and anthracnosis of cucumber. The compounds of present invention also show good insecticidal activity, part of the compounds, at very low doses, have excellent control effect on diseases caused by
Plutella xylostella
, armyworm,
Myzus persicae, Tetranychus cinnabarinus
etc.
SUBSTITUTED PYRIMIDINE COMPOUND AND PREPARATION METHOD AND USE THEREOF
申请人:SHENYANG SINOCHEM AGROCHEMICALS R&D CO., LTD.
公开号:US20210015100A1
公开(公告)日:2021-01-21
The present invention discloses a substituted pyrimidine compound. The structure is shown in general formula I. The definition of each substituent in the formula is described in the description. The compound of the present invention has broad-spectrum fungicidal, insecticidal and acaricidal activity, and has excellent control effects on cucumber downy mildew, powdery mildew, corn rust, anthrax, rice blast, aphids,
Tetranychus cinnabarinus
and the like.
Disclosed are substituted pyrazole compounds containing pyrimidinyl as shown in Formula I:
The definitions of each of the substituents can be seen in the description. The compounds of present invention have a good spectrum of bactericidal, insecticidal and acaricidal activity,and have good control effect on downy mildew of cucumber, powdery mildew of wheat, corn rust, rice blast, cucumber anthracnosis and the like. The compounds of present invention also show good insecticidal activity.
Disclosed is a substituted pyrimidine compound having a structure as represented by formula PY.
See the description for the definition of each substituent in the formula. The compound of the present invention provides broad-spectrum bactericidal, pesticidal, and acaricidal activities, provides great control effects against plant diseases such as cucumber downy mildew, corn rust, wheat powdery mildew, rice blast, and cucumber gray mold, specifically provides improved control effects against cucumber downy mildew, corn rust, wheat powdery mildew, and rice blast, provides great control effects against aphid, carmine spider mite, diamondback moth, and armyworm, and acquires great effects at a minimal dosage. The compound of the present invention also provides characteristics such as a simplified preparation method.