Enantioselective Michael Addition/Iminium Ion Cyclization Cascades of Tryptamine-Derived Ureas
作者:Isabelle Aillaud、David M. Barber、Amber L. Thompson、Darren J. Dixon
DOI:10.1021/ol401039h
日期:2013.6.21
A Michael addition/iminium ion cyclization cascade of enones with tryptamine-derived ureas under BINOL phosphoric acid (BPA) catalysis Is reported. The cascade reaction tolerates a wide variety of easily synthesized tryptamine-derived ureas, including those bearing substituents on the distal nitrogen atom of the urea moiety, affording polyheterocyclic products in good yields and good to excellent enantioselectivities.
FIVE-MEMBERED HETEROCYCLIC COMPOUNDS AS INHIBITORS OF SRC FAMILY PROTEIN KINASE
申请人:Sirenade Pharmaceuticals AG
公开号:EP1709040A2
公开(公告)日:2006-10-11
[EN] KINASE INHIBITOR COMPOUNDS<br/>[FR] COMPOSES INHIBITEURS DE KINASES
申请人:SIRENADE PHARMACEUTICALS AG
公开号:WO2005068458A2
公开(公告)日:2005-07-28
The present invention refers to novel substituted aromatic heteroaryl derivatives of formula (I), with the definitions of a, L1, L2, G, J, X and Y according to claim 1. These novel compounds are useful for the inhibition of protein kinases, particularly of the inhibition of Src family protein kinases. Methods for inhibiting kinases by contacting kinases with these novel compounds are disclosed. In another embodiment the present invention refers to pharmaceutical compositions containing these novel compounds and their use of medicaments for treating diseases or disorders associated with unphysiological activity of kinases in the body, particularly for the treatment of cancer, immunosuppression, and osteoporosis.
Five-membered heterocyclic compounds as inhibitors of SRC family protein kinase.
申请人:Sireen AG
公开号:EP1555264A1
公开(公告)日:2005-07-20
The present invention refers to novel substituted aromatic heteroaryl derivatives of formula (I).
with the definitions of A, L1, L2, G, J, X and Y according to claim 1.
These novel compounds are useful for the inhibition of protein kinases, particularly of the inhibition of Src family protein kinases. Methods for inhibiting kinases by contacting kinases with these novel compounds are disclosed. In another embodiment the present invention refers to pharmaceutical compositions containing these novel compounds and their use for the preparation of medicaments for treating diseases or disorders associated with unphysiological activity of kinases in the body, particularly for the treatment of cancer, immunosuppression, and osteoporosis.
A Convenient Method for the Preparation of Primary and Symmetrical N,N′-Disubstituted Thioureas
作者:R. Jason Herr、J. Louise Kuhler、Harold Meckler、Chester J. Opalka
DOI:10.1055/s-2000-7607
日期:——
A convenient process for the preparation of both primary thioureas 2 and symmetrical N,N′-disubstituted thioureas 6 based on the condensation of amine hydrohalides 5 with potassium thiocyanate has been developed. This approach tolerates sterically bulky primary amine substrates (both chiral and achiral), and the products can usually be isolated by a simple filtration of the reaction mixture. This method is an especially attractive alternative for the synthesis of thioureas when the corresponding isothiocyanates are unavailable, or difficult to prepare. It is also worth noting that a wide variety of amine hydrohalides, which are used in this procedure, are commercially available.