XL 388
A Novel Class of Highly Potent, Selective, ATP-Competitive, and Orally Bioavailable Inhibitors of the Mammalian Target of Rapamycin (mTOR)
Benzoxazepine-Containing Kinase Inhibitor
[7-(6-Aminopyridin-3-yl)-2,3-dihydro-1,4-benzoxazepin-4(5H)-yl][3-fluoro-2-methyl-4-(methylsulfonyl)phenyl]methanone
[7-(6-amino-3-pyridinyl)-2,3-dihydro-1,4-benzoxazepin-4(5H)-yl][3-fluoro-2-methyl-4-(methylsulfonyl)phenyl]-Methanone,
(7-(6-Aminopyridin-3-yl)-2,3-dihydrobenz[f][1,4]oxazepin-4(5H)-yl)(3-fluoro-2-methyl-4-(methylsulfonyl)phenyl)methanone
MW 455.50, CAS 1251156-08-7, MF C23 H22 F N3 O4 S
Exelixis, Inc. INNOVATOR, IND Filed
½H2O
C23H22FN3O4S.½H2O , Molecular Weight: 464.51
MONO HYDROCHLORIDE…..CAS 1777807-51-8, [7-(6-Aminopyridin-3-yl)-2,3-dihydro-1,4-benzoxazepin-4(5H)-yl][3-fluoro-2-methyl-4-(methylsulfonyl)phenyl]methanone Hydrochloride (1·HCl)
TLC Rf = 0.33 (Dichloromethane:Methanol [95:5])
Potent and selective mTOR inhibitor (IC50 = 9.9 nM). Inhibits mTOR activity in an ATP-competitive manner. Exhibits >300-fold selectivity for mTOR over PI 3-K and a range of other kinases. Displays antitumor activity in athymic nude mice implanted with tumor xenografts.
SYNTHESIS
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Tyrosine kinases are important enzymes for signal transduction in cells. Therefore, they are often targets for the treatment of diseases that are caused by dysregulation…
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