Reaction of β-halo α, β-unsaturated ketones with cuprate reagents. Efficient syntheses of β, β-dialkyl ketones and β-alkyl α,β-unsaturated ketones. A synthesis of (Z)-jasmone
Expedient Iron-Catalyzed C−H Allylation/Alkylation by Triazole Assistance with Ample Scope
作者:Gianpiero Cera、Tobias Haven、Lutz Ackermann
DOI:10.1002/anie.201509603
日期:2016.1.22
for the iron‐catalyzed C−H allylation of arenes, heteroarenes, and alkenes with ample scope. The versatile catalyst also proved competent for site‐selective methylation, benzylation, and alkylation with challenging primary and secondary halides. Triazole‐assisted C−H activation proceeded chemo‐, site‐, and diastereo‐selectively, and the modular TAM directing group was readily removed in a traceless
Novel substituted 4-(1H-benzimidazol-2-yl) [1,4]diazepanes useful for the treatment of allergic diseases
申请人:——
公开号:US20010034343A1
公开(公告)日:2001-10-25
The present invention relates to novel 4-(1H-benzimidazol-2-yl)[1,4]diazepane derivatives of formula
1
and stereoisomers thereof, and pharmaceutically acceptable salts thereof which are useful as histamine receptor antagonists and tachykinin receptor antagonist. Such antagonists are useful in the treatment of allergic rhinitis, including seasonal rhinitis and sinusitis; inflammatory bowel diseases, including Crohn's disease and ulcerative colitis; asthma; bronchitis; and emesis.
Chiral Sulfide Catalysis for Desymmetrizing Enantioselective Chlorination
作者:Qingxiang Cao、Jie Luo、Xiaodan Zhao
DOI:10.1002/anie.201811621
日期:2019.1.28
An unprecendented chiral sulfide catalyzed desymmetrizingenantioselective chlorination is disclosed. Various aryl‐tethered diolefins and diaryl‐tethered olefins afforded teralins and tricyclic hexahydrophenalene derivatives, respectively, bearing multiple stereogenic centers in high yields with excellent enantio‐ and diastereoselectivities. In contrast, the tertiary amine catalyst (DHQD)2PHAL led
NOVEL POLYAMINE ANALOG CONJUGATES AND QUINONE CONJUGATES AS THERAPIES FOR CANCERS AND PROSTATE DISEASES
申请人:Frydman Benjamin
公开号:US20080194697A1
公开(公告)日:2008-08-14
Peptide conjugates in which cytostatic and cytostatic agents, such as polyamine analogs or naphthoquinones, are conjugated to a polypeptide recognized and cleaved by enzymes such as prostate-specific antigen (PSA) and cathepsin B are provided, as well as compositions comprising these conjugates. Methods of using these conjugates in the treatment of prostate diseases are also provided.
[EN] SYNTHESIS OF PHEROMONES AND RELATED MATERIALS VIA OLEFIN METATHESIS<br/>[FR] SYNTHÈSE DE PHÉROMONES ET DE MATÉRIAUX APPARENTÉS PAR MÉTATHÈSE D'OLÉFINES