Synthesis of chiral disulfides: potential reagents for enantioselective sulfurization
摘要:
Synthesis of chiral phosphorothioates for use as antisense oligonucleotides might benefit from the use of chiral disulfides. This paper reports the synthesis of chiral analogs of phenylacetyl disulfide and of 5-methyl-3H-1,2,4-dithiazol-3-one from the same set of 2-arylalkanoic acids. The X-ray crystal structures of the disulfides derived from (R) and [S]-2-phenylpropanoic acid establish the stereochemistry and the helicity of these materials, and density functional theory calculations suggest that the high specific rotations can be due to preferred retention of this helicity in solution. Chiral HPLC showed that the final products were formed with enantiomeric purities from 86.1% to99.9%. [image omitted].
The present invention relates to an agent for the prophylaxis or treatment of pain, an agent for suppressing activation of osteoclast, and an inhibitor of osteoclast formation, which contains a p38 MAP kinase inhibitor and/or a TNF-α production inhibitor.
OXADIAZOLE, THIADIAZOLE AND TRIAZOLE DERIVATIVES AND COMBINATORIAL LIBRARIES THEREOF
申请人:TREGA BIOSCIENCES, INC.
公开号:EP1126833A2
公开(公告)日:2001-08-29
EP1126833A4
申请人:——
公开号:EP1126833A4
公开(公告)日:2004-09-08
IMIDATE COMPOUND AND USE THEREOF FOR PEST CONTROL
申请人:Sumitomo Chemical Company, Limited
公开号:EP2183215A2
公开(公告)日:2010-05-12
Method For Applying Corrosion Protection Layers Comprising Thioamides To Metallic Surfaces
申请人:Fernandez Gonzalez Monica
公开号:US20080131687A1
公开(公告)日:2008-06-05
Process for applying integrated pretreatment layers to metallic surfaces, particularly the surfaces of coil metals, by treatment with a composition comprising at least one binder, crosslinker, a finely divided inorganic filler, and compounds containing at least two thioamide groups or containing one thioamide group and at least one functional group. Integrated pretreatment layer obtainable by the process.