Palladium-catalyzed addition of arylboronic acids to isocyanates
作者:Ebrahim Kianmehr、Azam Rajabi、Mohammad Ghanbari
DOI:10.1016/j.tetlet.2009.01.054
日期:2009.4
The addition of arylboronic acids to isocyanates catalyzed by palladium acetate in the presence of triphenylphosphine as the ligand is described.
描述了在三苯基膦作为配体存在下,由乙酸钯催化将芳基硼酸加到异氰酸酯上。
[EN] N-ARYL(THIO)ANTHRANILIC ACID AMIDE DERIVATIVES, THEIR PREPARATION AND THEIR USE AS VEGF RECEPTOR TYROSINE KINASE INHIBITORS<br/>[FR] DERIVES DE N-ARYL(THIO)ANTHRANILIQUE ACIDE AMIDE, LEUR PREPARATION ET LEUR UTILISATION EN TANT QU'INHIBITEURS DE LA TYROSINE KINASE DU RECEPTEUR VEGF
申请人:NOVARTIS AG
公开号:WO2000027820A1
公开(公告)日:2000-05-18
Described are compounds of formula (I), wherein W is O or S; X is NR8; Y is CR9R10-(CH2)n wherein R9 and R10 are independently of each other hydrogen or lower alkyl, and n is an integer of from and including 0 to and including 3; or Y is SO2; R1 is aryl; R2 is a mono- or bicyclic heteroaryl group comprising one or more ring nitrogen atoms with the exception that R2 cannot represent 2-phthalimidyl, and in case of Y = SO2 cannot represent 2,1,3-benzothiadiazol-4-yl; any of R3, R4, R5 and R6, independently of the other, is H or a substituent other than hydrogen; and R7 and R8, independently of each other, are H or lower alkyl; or a N-oxide or a pharmaceutically acceptable salt thereof for the preparation of a pharmaceutical product for the treatment of a neoplastic disease which responds to an inhibition of the VEGF receptor tyrosine kinase activity. The compounds of formula (I) can be used for the treatment e.g. of a neoplastic disease, such as a tumor disease, of retinopathy and age-related macular degeneration.
Reductive cross-coupling of <i>N</i>-acyl pyrazole and nitroarene using tetrahydroxydiboron: synthesis of secondary amides
作者:Hayeon Moon、Sunwoo Lee
DOI:10.1039/d3ob01040f
日期:——
report on a new method for the synthesis of amidesusing acyl pyrazoles and nitroarenes under reducing conditions. It was found that acyl pyrazoles react with organo-nitro compounds in the presence of B2(OH)4, giving the corresponding amides in good yields. We demonstrated that benzoyl pyrazoles having various substituents and nitroarenes with different substituents can be used to produce a range of N-substituted
Modular Continuous Flow Synthesis of Imatinib and Analogues
作者:Wai Chung Fu、Timothy F. Jamison
DOI:10.1021/acs.orglett.9b02259
日期:2019.8.2
A modular continuous flow synthesis of imatinib and analogues is reported. Structural y diverse imatinib analogues are rapidly generated using three readily available building blocks via a flow hydration/chemoselective C-N coupling sequence. The newly developed continuous flow hydration and amidation modules each exhibit a broad scope with good to excellent yields. Overall, the method described does not require solvent switches, in-line purifications, or packed-bed apparatuses due to the judicious manipulation of flow setups and solvent mixtures.
Miyazawa, Etsuko; Sakamoto, Takeshi; Kikugawa, Yasuo, Journal of the Chemical Society. Perkin transactions II, 1998, # 1, p. 7 - 12