作者:V. A. Lopyrev、V. N. Kurochkin、I. A. Titova、M. G. Voronkov
DOI:10.1007/bf00962139
日期:1989.10
LOPYREV, V. A.;KUROCHKIN, V. N.;TITOVA, I. A.;VORONKOV, M. G., IZV. AN CCCP. CEP. XIM.,(1989) N0, S. 2363-2365
作者:LOPYREV, V. A.、KUROCHKIN, V. N.、TITOVA, I. A.、VORONKOV, M. G.
DOI:——
日期:——
PROCESS FOR PREPARATION OF 2-ALKOXY-6-(TRIFLUOROMETHYL)PYRIMIDIN-4-OL
申请人:Lonza Ltd
公开号:EP1592672A2
公开(公告)日:2005-11-09
Process for preparation of 2-alkoxy-6-(trifluoromethyl)pyrimidin-4-ol
申请人:Schmidt Beat
公开号:US20060100430A1
公开(公告)日:2006-05-11
A process for preparing a 2-alkoxy-6-(trifluoromethyl)pyrimidine-4-ol of the formula I:
wherein R is C
1
-C
8
alkyl. First a cyanogen halide, that is, cyanogen chloride ClCN or cyanogen bromide BrCN, is reacted with a C
1
-C
8
alcohol ROH and/or a C
1
-C
8
alcoholate in the presence of a base to give the corresponding symmetric imidocarbonic acid dialkylester of the formula II:
In a second step, the imidocarbonic acid diakylester is reacted with trifluoromethyl acetoacetic acid ethyl ester in the presence of ammonia to yield the compound of formula I.
DISULFIDE COMPOUNDS FOR DELIVERY OF PHARMACEUTICAL AGENTS
申请人:XU Qiaobing
公开号:US20160009643A1
公开(公告)日:2016-01-14
A compound of formula the following formula: (I). In this formula, moieties A, B, X, R
1
, R
2
, and R
3
are defined herein. Also disclosed are a nanocomplex that is formed of such a compound and a pharmaceutical agent, and a nanocomplex that is formed of a protein and a bioreducible compound.