Zinc Promoted Convenient and General Synthesis of Thiol Esters
作者:H. M. Meshram、Gondi Sudershan Reddy、K. Hima Bindu、J. S. Yadav
DOI:10.1055/s-1998-1797
日期:1998.8
Synthesis of thiolesters from acyl chlorides and thiols in the presence of activated zinc is described. The recovery of zinc and its reuse makes the procedure more economic.
描述了在活化锌存在下由酰氯和硫醇合成硫羟酸酯。锌的回收和再利用使该过程更加经济。
Convenient and Efficient Synthesis of Thiol Esters using Zinc Oxide as a Heterogeneous and Eco-Friendly Catalyst
A catalytic method was developed to synthesize thiolesters from the reaction of acyl chlorides and thiols using zinc oxide as a catalyst under solvent-free conditions at room temperature. Mild reaction conditions, short reaction time, excellent yields of products and recyclability of the catalyst are noteworthy features of this methodology.
External preparation for skin diseases containing nitroimidazole
申请人:——
公开号:US20030092754A1
公开(公告)日:2003-05-15
An external preparation for skin disease which comprises a nitroimidazole derivative represented by the following formula (I):
1
wherein R
1
, R
3
and R
4
may be the same or different and represent a hydrogen atom, a nitro group, a lower alkyl group, a substituted lower alkyl group, a lower alkenyl group, or a substituted lower alkenyl group; and R
2
represents a hydrogen atom, a lower alkyl group, a substituted lower alkyl group and a lower alkenyl group or a substituted lower alkenyl group, provided that any one of R
1
, R
3
and R
4
is a nitro group.
In the presence of silver tetrafluoroborate, S-ethyl carbothioates reacted with 1-alkynyltrimethylsilanes to give the corresponding acetylenic ketones in good yields.
在四氟硼酸银的存在下,S-硫代碳酸乙酯与1-炔基三甲基硅烷反应,以高收率得到相应的炔酮。
[EN] COMPOSITIONS AND METHODS COMPRISING CAPURAMYCIN ANALOGUES<br/>[FR] COMPOSITIONS ET PROCÉDÉS COMPRENANT DES ANALOGUES DE LA CAPURAMYCINE
申请人:SEQUELLA INC
公开号:WO2009136965A1
公开(公告)日:2009-11-12
Methods and compositions for treating disease caused by infectious agents, particularly tuberculosis are provided. In particular, methods and compositions comprising substituted derivatives of capuramycin analogs for the treatment of infectious diseases are provided. Also provided are capuramycin analogue formulations comprising PEGylated compounds, including a PEGylated vitamin E derivative, liposomes and nanoparticle carriers. The invention provides methods and compositions comprising a capuramycin analogue and capuramycin analogues in combination with one or more other active agents.