Intramolecular hydrosilylations of β,γ-unsaturated acyloxy silanes. A convenient synthesis of (2S,3R)-N-BOC-3-hydroxyproline methyl ester
摘要:
A regio- and stereoselective synthesis of hydroxylated carboxylic acids by intramolecular hydrosilylation of beta,gamma-unsaturated acyloxysilanes has been developed. Application of the methodology in the synthesis of (2S,3R)-3-hydroxy N-BOC-proline methyl ester is described.
Selective transformation of nitriles into amides and carboxylic acids by an immobilized nitrilase
作者:Norbert Klempier、Anna de Raadt、Kurt Faber、Herfried Griengl
DOI:10.1016/s0040-4039(00)92623-6
日期:1991.1
Using an immobilized nitrilase from Rhodococcus sp. mild and selective hydrolysis of nitriles can be achieved even in the presence of acid or base sensitive groups under neutral conditions. This method is applicable to a broad range of substrates as exemplified by aliphatic, alicyclic, heterocyclic and carbohydrate type nitriles.
The present invention pertains to Benzyl-substituted tetracyclic heterocyclic compounds of formula (I), as well as the resulting pharmaceutical compositions, and their use in the treatment or prophylaxis of diseases alleviated by inhibition of type 5 phosphodiesterases. Furthermore, the present invention pertains to the methods of manufacturing these Benzyl -substituted tetracyclic heterocyclic compounds.
Titanium-Mediated Carboxylation of Alkynes With Carbon Dioxide
作者:Yvan Six
DOI:10.1002/ejoc.200390170
日期:2003.3
The regioselective carboxylation of nonactivated internal alkynes can be performed with carbondioxide under atmospheric pressure using a simple procedure based on the chemistry of Sato-type diisopropyloxytitanacyclopropenes. Various polysubstituted vinylcarboxylic acids and butenolides can be prepared in this way. In addition, this paper describes an experimental protocol for the preparation of solutions
Pyrrolo[2,3-d]pyrimidines that modulate ACK1 activity
申请人:Farthing N. Christopher
公开号:US20060040965A1
公开(公告)日:2006-02-23
Compounds that modulate the action of ACK1 and LCK, and related compositions methods for treating ACK1- and LCK-mediated diseases are described. In one aspect, the compounds have the general structure:
where the values of the substituents are provided herein.
申请人:Chai Tai Tianqing Pharmaceutical Group Co., Ltd.
公开号:EP3418282A1
公开(公告)日:2018-12-26
Provided are compounds of formula I and formula II or pharmaceutically acceptable salts of the compounds and pharmaceutical compositions thereof. The compounds of formula I and formula II or the pharmaceutically acceptable salts of the compounds provide indole 2,3-dioxygenase (IDO) inhibitory activity and are capable of treating IDO-mediated immunosuppressive diseases, such as infectious diseases or cancer.
本文提供了式 I 和式 II 的化合物或其药学上可接受的盐及其药物组合物。式 I 和式 II 的化合物或其药学上可接受的盐具有吲哚-2,3-二氧合酶(IDO)抑制活性,能够治疗 IDO 介导的免疫抑制疾病,如传染性疾病或癌症。