Synthesis of Highly Substituted Indolines and Indoles via Intramolecular [4 + 2] Cycloaddition of Ynamides and Conjugated Enynes
作者:Joshua R. Dunetz、Rick L. Danheiser
DOI:10.1021/ja051180l
日期:2005.4.1
Ynamides react with conjugated enynes in intramolecular [4 + 2] cycloadditions to afford substituted indolines that undergo oxidation with o-chloranil to furnish the corresponding indoles. The cycloaddition substrates are easily assembled from derivatives of 3-butynylamine by Sonogashira coupling with alkenyl halides followed by copper-catalyzed N-alkynylation with acetylenic bromides. Diynamides participate
Tandem Catalytic C(sp<sup>3</sup>)H Amination/Sila-Sonogashira-Hagihara Coupling Reactions with Iodine Reagents
作者:Julien Buendia、Benjamin Darses、Philippe Dauban
DOI:10.1002/anie.201412364
日期:2015.5.4
A new tandem CN and CC bond‐forming reaction has been achieved through RhII/Pd0 catalysis. The sequence first involves an iodine(III) oxidant, then the in situ generated iodine(I) by‐product is used as a coupling partner. The overall process demonstrates the synthetic value of iodoarenes produced in trivalent iodine reagent mediated oxidations.
通过Rh II / Pd 0催化实现了一个新的串联CN和CC键形成反应。该序列首先涉及碘(III)氧化剂,然后将原位生成的碘(I)副产物用作偶联伴侣。整个过程证明了在三价碘试剂介导的氧化反应中产生的碘代芳烃的合成价值。
Sulphones which modulate the action of gamma secretase
申请人:——
公开号:US20040116404A1
公开(公告)日:2004-06-17
Disclosed are sulphones which modulate the action of gamma-secretase. The compounds are useful in the treatment or prevention of Alzheimer's disease.
本发明涉及一种可以调节γ-分泌酶作用的磺酰化合物,该化合物可用于治疗或预防阿尔茨海默病。
Sulphones which modulate the action of gammasecretase
申请人:Castro Pineiro Luis Jose
公开号:US20070213329A1
公开(公告)日:2007-09-13
Novel sulphones of Formula I are disclosed:
wherein A completes a 4-7 membered ring optionally comprising up to two heteroatoms. The compounds modulate the action of γ-secretase and are therefore useful in the treatment or prevention of Alzheimer's disease.
Sulphones which modulate the action of gamma-secretase
申请人:Merck Sharp & Dohme Limited
公开号:US07598386B2
公开(公告)日:2009-10-06
Novel sulphones of Formula I are disclosed:
wherein A completes a 4-7 membered ring optionally comprising up to two heteroatoms. The compounds modulate the action of γ-secretase and are therefore useful in the treatment or prevention of Alzheimer's disease.