A rarely explored oxidative ringcontraction of electron-rich 1,2-diazine is described. Upon treatment with an electrophilic chlorinating reagent (TCICA), 1,4-dimethoxyphthalazines undergo an N-chlorination-induced ringcontraction that is accompanied by the loss of one nitrogen atom. The scope of this unusual reactivity was examined with a range of 1,4-dimethoxyphthalazine derivatives. In addition
KRAS G12C INHIBITORS AND METHODS OF USING THE SAME
申请人:AMGEN INC.
公开号:US20180177767A1
公开(公告)日:2018-06-28
Provided herein are KRAS G12C inhibitors, composition of the same, and methods of using the same. These inhibitors are useful for treating a number of disorders, including pancreatic, colorectal, and lung cancers.
Discovery of a Covalent Inhibitor of KRAS<sup>G12C</sup> (AMG 510) for the Treatment of Solid Tumors
作者:Brian A. Lanman、Jennifer R. Allen、John G. Allen、Albert K. Amegadzie、Kate S. Ashton、Shon K. Booker、Jian Jeffrey Chen、Ning Chen、Michael J. Frohn、Guy Goodman、David J. Kopecky、Longbin Liu、Patricia Lopez、Jonathan D. Low、Vu Ma、Ana E. Minatti、Thomas T. Nguyen、Nobuko Nishimura、Alexander J. Pickrell、Anthony B. Reed、Youngsook Shin、Aaron C. Siegmund、Nuria A. Tamayo、Christopher M. Tegley、Mary C. Walton、Hui-Ling Wang、Ryan P. Wurz、May Xue、Kevin C. Yang、Pragathi Achanta、Michael D. Bartberger、Jude Canon、L. Steven Hollis、John D. McCarter、Christopher Mohr、Karen Rex、Anne Y. Saiki、Tisha San Miguel、Laurie P. Volak、Kevin H. Wang、Douglas A. Whittington、Stephan G. Zech、J. Russell Lipford、Victor J. Cee
DOI:10.1021/acs.jmedchem.9b01180
日期:2020.1.9
in the treatment of solid tumors. Covalent inhibitors targeting the mutant cysteine-12 residue have been shown to disrupt signaling by this long-"undruggable" target; however clinically viable inhibitors have yet to be identified. Here, we report efforts to exploit a cryptic pocket (H95/Y96/Q99) we identified in KRASG12C to identify inhibitors suitable for clinical development. Structure-based design
Also, an improvement of overall efficiency was demonstrated by the use of a labile O-silyl group. A bicyclization/ring-opening mechanism, inspired by the Favorskii rearrangement, was proposed and supported by the DFTcalculations. Furthermore, the efforts on scope expansion as well as the evaluation of other electrophilic promoters revealed that the newly developed ring contraction reactivity is a
Provided are compounds of formula (I), Wherein R 1, R 2, R 3, R 4, R 5 and R 6 are as defined in the specification, and pharmaceutically acceptable salts thereof, which are useful as agents in the treatment of diseases and conditions mediated and modulated by SUV402H1. Also provided are pharmaceutical compositions comprised of one or more compounds of formula (I).