Structure–activity relationship study of phenylpyrazole derivatives as a novel class of anti-HIV agents
摘要:
The structure-activity relationship of phenylpyrazole derivative 1 was investigated for the development of novel anti-HIV agents. Initial efforts revealed that the diazenyl group can be replaced by an aminomethylene group. In addition, we synthesized various derivatives by the reductive amination of benzaldehydes with 5-aminopyrazoles and carried out parallel structural optimization on the benzyl group and the pyrazole ring. This optimization led to a six-fold more potent derivative 32j than the lead compound 1, and this derivative has a 3',4'-dichloro-(1,1'-biphenyl)-3-yl group. (C) 2013 Elsevier Ltd. All rights reserved.
Der zu den 4‐Amino‐3‐methylpyrazolo[3,4‐d]pyrimidinen 6a‐e führende Ringschluß an den 5‐Amino‐4‐cyan‐3‐methylpyrazolen 4a‐e hat sich mittels Formamid (5) realisieren lassen. Struktur‐typ 4 (4a‐h) geht aus der überdie Hydrazinoethylidenmalononitrile 3 erklärbaren Umsetzung des Ethoxyethylidenmalononitrile (1) mit den korrespondierenden Hydrazinderivaten 2a‐h hervor.
PIGMENT COMPOSITION, INKJET RECORDING INK, COLORING COMPOSITION FOR COLOR FILTER, AND COLOR FILTER
申请人:HIGASHI Masahiro
公开号:US20120001133A1
公开(公告)日:2012-01-05
A pigment composition including (A) an azo pigment represented by formula (1), and
at least one selected from the group consisting of (B) a coloring agent represented by formula (2), and (C) at least one selected from the group consisting of an additive represented by formula (3) and an additive represented by formula (4).
The structure-activity relationship of phenylpyrazole derivative 1 was investigated for the development of novel anti-HIV agents. Initial efforts revealed that the diazenyl group can be replaced by an aminomethylene group. In addition, we synthesized various derivatives by the reductive amination of benzaldehydes with 5-aminopyrazoles and carried out parallel structural optimization on the benzyl group and the pyrazole ring. This optimization led to a six-fold more potent derivative 32j than the lead compound 1, and this derivative has a 3',4'-dichloro-(1,1'-biphenyl)-3-yl group. (C) 2013 Elsevier Ltd. All rights reserved.