[EN] ALKENYL-SUBSTITUTED SPIROCYCLIC SULFAMIDES AS INHIBITORS OF GAMMA-SECRETASE [FR] SULFAMIDES SPIROCYCLIQUES SUBSTITUES PAR ALCENYLE UTILISES COMME INHIBITEURS DE LA GAMMA-SECRETASE
[EN] ALKYNYL-SUBSTITUTED SPIROCYCLIC SULFAMIDES FOR THE TREATMENT OF ALZHEIMER'S DISEASE<br/>[FR] SULFAMIDES SPIROCYCLIQUES SUBSTITUES PAR ALKYNYLE, DESTINES AU TRAITEMENT DE LA MALADIE D'ALZHEIMER
申请人:MERCK SHARP & DOHME
公开号:WO2003093253A1
公开(公告)日:2003-11-13
Compounds of formula (I) are disclosed. The compounds inhibit gamma-secretase and hence find use in treatment of Alzheimer's disease.
公式(I)的化合物已被披露。这些化合物抑制γ-分泌酶,因此可用于治疗阿尔茨海默病。
Alkynly-substituted spirocyclic sulfamides for the treatment of alzheimer's disease
申请人:Campbell Alister
公开号:US20050215602A1
公开(公告)日:2005-09-29
Compounds of formula (I) are disclosed. The compounds inhibit gamma-secretase and hence find use in treatment of Alzheimer's disease.
公式(I)的化合物被揭示。这些化合物抑制γ-分泌酶,因此可用于治疗阿尔茨海默病。
Synthesis of Substituted Pentafluorosulfanylpyrazoles Under Flow Conditions
conditions for the synthesis of pentafluorosulfanylpyrazoles is reported. A range of alkyl- and aryl-substituted SF5-alkynes were used in combination with different diazoacetates for this transformation. The corresponding substituted SF5-pyrazoles were obtained in up to 90% yield (average of 74% for 21 examples) as a mixture of isomers (up to 73:27 ratio). Synthetic transformations starting from an SF5-containing
The regioselective gold-catalyzed hydration of CF3- and SF5-alkynes is described. The corresponding trifluoromethylated and pentasulfanylated ketones are obtained in up to 91% yield as single regioisomers showcasing the use of CF3 and SF5 as highly efficient directing groups in this reaction. Notably, this transformation represents the first use of CF3- and SF5-alkynes in gold catalysis.