Intramolecular Cyclization Reactions of N-Alkylaryl-and N, N-Dialkylarylureas with Aldehydes
作者:Atanas P. Venkov、Tanya A. Temnyalova
DOI:10.1080/00397919608004630
日期:1996.9
The reactions of N-alkylaryl- and N,N'-dialkylarylureas with aldehydes in acidic medium leads to the synthesis of N-carbamoyltetrahydroisoquinolines and tetrahydro-1,3,5-oxadiazin-4-ones (urons) depending on the structure of starting compounds and the reaction conditions.
[EN] INHIBITORS OF HISTONE DEACETYLASE<br/>[FR] INHIBITEURS DE L'HISTONE-DEACETYLASE
申请人:METHYLGENE INC
公开号:WO2003024448A2
公开(公告)日:2003-03-27
The invention relates to the inhibition of histone deacetylase. The invention provides compounds e.g. (1) and methods for inhibiting deacetylase enzymatic activity. The invention also provides compositions and methods for treating cell proliferative diseases and conditions. (formula 1). All definitions are as the application.
Polyphosphoric Acid-Induced Construction of Quinazolinone Skeleton from 1-(3,4-Dimethoxyphenyl)-3-phenylurea and Carboxylic Acids
A general synthesis of a series 4-substituted 3,4-dihydro-2(1H)-quinazolinones (7) included polyphosphoric acid (PPA)-induced cyclization with carboxylic acids. Modification at the 4-position of the quinazolinone skeleton was best achieved by variation of carboxylic acids. Starting 1-(3,4-dimethoxyphenyl)-3-phenylurea (3) was prepared from the phenylisocyanate and 3,4-dimethoxyaniline.