[EN] COMPOSITIONS AND METHODS FOR MODULATING RETINOL BINDING TO RETINOL BINDING PROTEIN 4 (RBP4) [FR] COMPOSITIONS ET PROCÉDÉS POUR MODULER LA LIAISON DU RÉTINOL À LA PROTÉINE 4 DE LIAISON AU RÉTINOL (RBP4)
Structurally diverse arylchlorides were silylated with sodium silylsilanolate reagents in the presence of a Ni(cod)2 catalyst complexed with a phosphine ligand; PMe2Ph for electron-rich substrates, and PCy2Ph for electron-deficient ones. The mild reaction conditions allowed the silylation of various arylchlorides including functionalised drug molecules.
COMPOSITIONS AND METHODS FOR MODULATING RETINOL BINDING TO RETINOL BINDING PROTEIN 4 (RBP4)
申请人:Petrassi Hank Michael James
公开号:US20120077854A1
公开(公告)日:2012-03-29
The present invention relates to compositions and methods for modulating retinol binding to retinol binding protein 4 (RBP4). In particular, the present invention provides compounds having Formula (1) or (2) (Formulae (1), (2)); wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, Y
1
, Y
2
, Y
3
, Y
4
and m are as defined above.
A general and highly efficient photochemical C–N coupling reaction of challenging (hetero)aryl chlorides with hydrazides is reported. Catalyzed by a Ni(II)–bipyridine complex, this reaction provides an efficient tool for the synthesis of arylhydrazines in the presence of a soluble organic amine base without an external photosensitizer. The reaction features a wide substrate range (54 examples) and
The hydroarylation of alkenes has emerged as a powerful strategy for arene functionalization. However, aryl chlorides remain a large challenge in this type of reaction due to the chemical inertness of the C(sp2)–Cl bond and high negative reduction potential. Herein, we report an anti-Markovnikov radical hydroarylation of alkenes with aryl chlorides via visible-light photoredox catalysis. The key reactive