[EN] SUBSTITUTED THIOPHENE DERIVATIVES AS ANTI-CANCER AGENTS<br/>[FR] DERIVES DU THIOPHENE SUBSTITUES EN TANT QU'AGENTS ANTICANCEREUX
申请人:CHIRON CORP
公开号:WO2005095386A1
公开(公告)日:2005-10-13
The present invention relates to new substituted five-membered compounds and pharmaceutically acceptable salts, esters or prodrugs thereof, compositions of the new compounds together with pharmaceutically acceptable carriers, and uses of the new compounds. The compounds of the invention have the following general formula (I).
Xanthine derivatives, the preparation thereof and their use as pharmaceutical compositions
申请人:——
公开号:US20020198205A1
公开(公告)日:2002-12-26
The present invention relates to substituted xanthines of general formula
1
wherein R
1
to R
4
are defined as in claim 1, the tautomers and the stereoisomers thereof, mixtures thereof, the prodrugs and the salts thereof which have valuable pharmacological properties, particularly an inhibiting effect on the activity of the enzyme dipeptidylpeptidase-IV (DPP-IV).
Reduction and Reductive Deuteration of Tertiary Amides Mediated by Sodium Dispersions with Distinct Proton Donor-Dependent Chemoselectivity
作者:Bin Zhang、Hengzhao Li、Yuxuan Ding、Yuhao Yan、Jie An
DOI:10.1021/acs.joc.8b00617
日期:2018.6.1
practical and scalable single electron transfer reduction mediated by sodium dispersions has been developed for the reduction and reductive deuteration of tertiary amides. The chemoselectivity of this method highly depends on the nature of the proton donor. The challenging reduction via C–N bond cleavage has been achieved using Na/EtOH, affording alcohol products, while the use of Na/NaOH/H2O leads to the
已经开发了由钠分散体介导的实用且可扩展的单电子转移还原,用于还原和还原叔酰胺。该方法的化学选择性高度取决于质子供体的性质。通过使用Na / EtOH(可提供醇类产物)实现C-N键断裂的富挑战性还原,而使用Na / NaOH / H 2 O则可通过选择性的C-O裂解形成胺。具有高比表面积的钠分散体对于获得高收率和良好的化学选择性至关重要。这种新方法可以耐受多种叔酰胺。此外,Na / EtOD- d 1和Na / NaOH / D 2介导的相应还原氘O提供有用的具有优异氘含量的α,α-二氘代醇和α,α-二氘代胺。
Xanthine derivatives,production and use thereof as medicament
申请人:——
公开号:US20040077645A1
公开(公告)日:2004-04-22
The present invention relates to substituted xanthines of general formula
1
wherein R
1
to R
4
are defined as in claim 1, the tautomers and the stereoisomers thereof, mixtures thereof, the prodrugs and the salts thereof which have valuable pharmacological properties, particularly an inhibiting effect on the activity of the enzyme dipeptidylpeptidase-IV (DPP-IV).
The present invention relates to new substituted five-membered compounds and pharmaceutically acceptable salts, esters or prodrugs thereof, compositions of the new compounds together with pharmaceutically acceptable carriers, and uses of the new compounds. The compounds of the invention have the following general formula: