Synthesis and Biological Evaluation of Some 1-Substituted 3-(2-Perimidyl)ureas
作者:Kang-Chien Liu、Hsu-Shan Huang
DOI:10.1002/ardp.19883210712
日期:——
Some representative 1‐substituted 3‐(2‐perimidyl)ureas were prepared by treatment of 2‐aminoperimidine hydrobromide with the corresponding isocyanates in the presence of triethylamine. A preliminary biologicalevaluation for their antibacterial and cytotoxic properties revealed that only those compounds which contain a chlorinated substituent at N‐1 exhibited some notable effect.
Synthesis of methyl 4(1H)-oxopyrimido[1,2-a]perimidine-2-carboxylate
作者:Kang-Chien Liu、Hsu-Shan Huang
DOI:10.1002/ardp.19883211019
日期:——
Darstellung von 4(1H)‐Oxopyrimido1,2‐alperimidin‐2‐carbonsäure‐methylester
4(1H)-oxopyrimido1,2-alperimidine-2-羧酸甲酯的制备
Synthesis of Some 3,4-Dihydropyrimido[1,2-a]perimidin-2(1H)-ones Darstellung einiger 3,4-Dihydropyrimido[1,2-a]perimidin-2(1H)-one
作者:Kang-Chien Liu、Hsu-Shan Huang、Su-Mi Lin
DOI:10.1002/ardp.19903230117
日期:——
La synthese se fait a partir de chlorure d'acides acryliques et du bromhydrate d'amino-2 perimidine
合成自己的部分氯化物丙烯酸和溴水合物 d'amino-2 perimidine
A novel cyan coupler
申请人:KONICA CORPORATION
公开号:EP0386931A1
公开(公告)日:1990-09-12
There are disclosed a novel cyan dye-forming coupler and a silver halide photographic light-sensitive material containing the novel coupler represented by the following Formulas I to V:
wherein R represents a substituent; Y represents a substituent having a Hammett's substituent constant σp of not less than 0.3 and not more than 1.5; Z represents the group of atoms necessary to form a 5 to 7-membered nitrogen-containing heterocyclic ring; ℓ, m and n are the integers of 0 to 4, 0 to 5 and 0 to 3, respectively; and X represnts a hydrogen atom or a substituent capable of splitting off upon a reaction with an oxidation product of a developing agent.