3-芳酰基-4-羟基-2-喹诺酮类4和11可以开始进行合成1或9 通过Fries重排的相应的酯的3和10,通过氰化钾和18-冠-6催化。提出了一种一锅法,其中不需要分离酯。用锌粉还原芳基酮4和11导致苄基衍生物5和12。芳基酮4和11与羟胺反应,随后加热粗产物,通过贝克曼热重排和脱水生成恶唑喹诺酮7和14。通过Fries重排不能将2-芳氧基吡啶并[1,2- a ]嘧啶-4-酮17和20转化为相应的酮。
3-芳酰基-4-羟基-2-喹诺酮类4和11可以开始进行合成1或9 通过Fries重排的相应的酯的3和10,通过氰化钾和18-冠-6催化。提出了一种一锅法,其中不需要分离酯。用锌粉还原芳基酮4和11导致苄基衍生物5和12。芳基酮4和11与羟胺反应,随后加热粗产物,通过贝克曼热重排和脱水生成恶唑喹诺酮7和14。通过Fries重排不能将2-芳氧基吡啶并[1,2- a ]嘧啶-4-酮17和20转化为相应的酮。
Compounds and compositions for inhibiting the activity of SHP2
申请人:Novartis AG
公开号:US10934285B2
公开(公告)日:2021-03-02
The present invention relates to compounds of formula I: in which Y1, Y2, R1, R2 and R3 are defined in the Summary of the Invention; capable of inhibiting the activity of SHP2. The invention further provides a process for the preparation of compounds of the invention, pharmaceutical preparations comprising such compounds and methods of using such compounds and compositions in the management of diseases or disorders associated with the aberrant activity of SHP2.
Sulfenylation of Heterocyclic 1,3-Dicarbonyl Compounds
作者:Barbara Schnell、Thomas Kappe
DOI:10.1007/pl00010293
日期:1999.9
Discovery and Characterization of (<i>R</i>)-6-Neopentyl-2-(pyridin-2-ylmethoxy)-6,7-dihydropyrimido[2,1-<i>c</i>][1,4]oxazin-4(9<i>H</i>)-one (PF-06462894), an Alkyne-Lacking Metabotropic Glutamate Receptor 5 Negative Allosteric Modulator Profiled in both Rat and Nonhuman Primates
作者:Antonia F. Stepan、Michelle M. Claffey、Matthew R. Reese、Gayatri Balan、Gabriela Barreiro、Jason Barricklow、Michael J. Bohanon、Brian P. Boscoe、Gregg D. Cappon、Lois K. Chenard、Julie Cianfrogna、Laigao Chen、Karen J. Coffman、Susan E. Drozda、Joshua R. Dunetz、Somraj Ghosh、Xinjun Hou、Christopher Houle、Kapil Karki、John T. Lazzaro、Jessica Y. Mancuso、John M. Marcek、Emily L. Miller、Mark A. Moen、Steven O’Neil、Isao Sakurada、Marc Skaddan、Vinod Parikh、Deborah L. Smith、Patrick Trapa、Jamison B. Tuttle、Patrick R. Verhoest、Daniel P. Walker、Annie Won、Ann S. Wright、Jessica Whritenour、Kenneth Zasadny、Margaret M. Zaleska、Lei Zhang、Christopher L. Shaffer
DOI:10.1021/acs.jmedchem.7b00604
日期:2017.9.28
We previously observed a cutaneous type IV immune response in nonhuman primates (NHP) with the mGlu(5) negative allosteric modulator (NAM) 7. To determine if this adverse event was chemotype- or mechanism-based, we evaluated a distinct series of mGlu(5) NAMs. Increasing the sp(3) character of high-throughput screening hit 40 afforded a novel morpholinopyrimidone mGlu(5) NAM series. Its prototype, (R)-6-neopentyl-2-(pyridin-2-ylmethoxy)-6,7-dihydropyrimido[2,1-c] [1,4]oxazin-4(9H)-one (PF-06462894, 8), possessed favorable properties and a predicted low clinical dose (2 mg twice daily). Compound 8 did not show any evidence of immune activation in a mouse drug allergy model. Additionally, plasma samples from toxicology studies confirmed that 8 did not form any reactive metabolites. However, 8 caused the identical microscopic skin lesions in NHPs found with 7, albeit with lower severity. Holistically, this work supports the hypothesis that this unique toxicity may be mechanism-based although additional work is required to confirm this and determine clinical relevance.
COMPOUNDS AND COMPOSITIONS FOR INHIBITING THE ACTIVITY OF SHP2
申请人:Novartis AG
公开号:US20210300919A1
公开(公告)日:2021-09-30
The present invention relates to compounds of formula I:
in which Y
1
, Y
2
, R
1
, R
2
and R
3
are defined in the Summary of the Invention; capable of inhibiting the activity of SHP2. The invention further provides a process for the preparation of compounds of the invention, pharmaceutical preparations comprising such compounds and methods of using such compounds and compositions in the management of diseases or disorders associated with the aberrant activity of SHP2.