The present invention relates to HSP90 inhibitors containing fused amino pyridine core that are useful as inhibitors of HSP90 and their use in the treatment of HSP90 related diseases and disorders such as cancer, an autoimmune disease, or a neurodegenerative disease.
Nickel-catalyzed regioselective carbocyclization of ortho-halophenyl ketones with propiolates: an efficient route to disubstituted indenolsElectronic supplementary information (ESI) available: synthesis and characterization of compounds 3. See http://www.rsc.org/suppdata/cc/b2/b201473d/
作者:Dinesh Kumar Rayabarapu、Chien-Hong Cheng
DOI:10.1039/b201473d
日期:2002.4.19
Carbocylization of o-halophenyl ketones with propiolates in the presence of Ni(dppe)Br2 and Zn powder in acetonitrile at 80 °C afforded the corresponding 2,3-disubstituted indenols.
degrees C to afford the corresponding indenol derivatives 3a-m with remarkable regioselectivity in good to excellent yields. The nickel-catalyzed carbocyclization reaction was successfully extended to other simple disubstituted alkynes. Thus, the reaction of 2-halophenyl ketones 1a-e with disubstituted alkynes (2h, PhC[triple bond]CPh; 2i, CH(3)C(6)H(4)C[triple bond]CC(6)H(4)CH(3); 2j, CH(3)CH(2)C[triple
Palladium-catalyzed <i>ortho</i>-halogen-induced deoxygenative approach of alkyl aryl ketones to 2-vinylbenzoic acids
作者:Shankar Ram、Ajay Kumar Sharma、Arvind Singh Chauhan、Pralay Das
DOI:10.1039/d0cc02941f
日期:——
polymer chemistry and are key precursors for the synthesis of important bioactive molecules. Herein, an ortho-halogen-induced deoxygenative approach for the generation of 2-vinylbenzoic acids from alkylarylketones by palladium catalysis is discovered and explored. This approach requires no base or stoichiometric additives and can be carried out through a simple one-step process. Furthermore, the present
Molybdenum(0)-Promoted Carbonylative Cyclization of<i>o</i>-Haloaryl- and β-Haloalkenylimine Derivatives by Oxidative Addition of a Carbon(sp<sup>2</sup>)Halogen Bond: Preparation of Two Types of γ-Lactams
作者:Jun Takaya、Kenichiro Sangu、Nobuharu Iwasawa
DOI:10.1002/anie.200902884
日期:2009.9.7
Lovely lactams: Synthetically useful γ‐lactam derivatives have been prepared through the unique title transformation. By utilizing the characteristic property of the molybdenum complex, two kinds of products (both of which have rarely been obtained by reactions catalyzed by late transition metals) were obtained selectively by adjusting the reaction conditions (see scheme).