US 7,521,448 B2
N-substituted benzimidazolyl c-Kit inhibitors
Joshua Bolger, Farmingdale, N.Y. (US); Arlindo L. Castelhano, Farmingdale, N.Y. (US); Andrew Phillip Crew, Farmingdale, N.Y. (US); Han-Qing Dong, Farmingdale, N.Y. (US); Ayako Honda, Farmingdale, N.Y. (US); Radoslaw Laufer, Farmingdale, N.Y. (US); An-Hu Li, Farmingdale, N.Y. (US); Kristen Mulvihill, Farmingdale, N.Y. (US); Li Qiu, Farmingdale, N.Y. (US); Colin Peter Sambrook Smith, Oxford (United Kingdom); Yingchaun Sun, Farmingdale, N.Y. (US); Graham Michael Wynne, Oxford (United Kingdom); and Tao Zhang, Farmingdale, N.Y. (US)
Assigned to OSI Pharmaceuticals, Inc., Melville, N.Y. (US)
Filed on Aug. 16, 2004, as Appl. No. 10/921,414.
Claims priority of provisional application 60/496806, filed on Aug. 21, 2003.
Prior Publication US 2006/0189629 A1, Aug. 24, 2006
Int. Cl. A61K 31/5377 (2006.01); C07D 413/12 (2006.01)
U.S. Cl. 514—234.5  [544/139] 6 Claims
 
1. A compound represented by Formula (I):

OG Complex Work Unit Drawing
wherein:
one of R11, R12, R13 and R14 is —NR3COR31, —NR3CONR3R31, —NR3SO2R31, —CO2R3, —CO2H, —C0-8alkylNR3R31 or —CONR3R3R31; and the others are each independently F, Cl, Co0-3alkyl, C0-8alkoxy, or —N(C0-8alkyl)(C0-8alkyl);
X is phenyl, optionaily substituted with 1-4 of halogen, —NR32R33, —NR32COR33, —NR32CO2R33, —NR32SO2R33, —OR32, SR32, —SO2R32, —SO2NR32R33, —CO2R32, —CO2H, —CONR32R33, —C0-8alkyl, —C2-8alkenyl, —C2-8alkynyl, —CN, CF3, OCF3, NO2, or oxo;
Y is

OG Complex Work Unit Drawing
wherein the point of attachment to X can be from either the left or the right as shown;
Ra and Rb, are each independently C0-8alkyl or C3-8cycloallcyl; or Ra and Rb, taken together with the C to which they are attached form a saturated or partially unsaturated 3-10 membered ring;
n is 1, 2, 3, 4 or 5;
Z is phenyl, optionally substituted with 1-5 independent halogen, —NR34R35, —NR34COR35, —NR34C(O)OR35, —NR34SO2R35, —OR34, —SR34, —SO2R34, —SO2NR34R35, —C(O)OR34, —CO2H, —CONR34R35, C0-8alkyl, C2-8alkenyl, C2-8alkynyl, —OC0-8alkyl, —SC0-8alkyl, —SO2C0-8alkyl, —SO2N(C0-8alkyl)(C0-8alkyl), —C(O)OC0-8alkyl, CN, CF3, NO2, oxo, carbocyclyl, C0-8alkyl-O—C0-8alkyl, C0-8alkyl-O—C(O)—C0-8alkyl, or C0-8alkyl-C(O)-O—C0-8alkyl;
R3, R34 , and R35 are independently —CF3, —CHF2, —C0-8alkyl-O—C0-8alkyl, —C0-8alkyl-N(C0-8alkyl)(C0-8alkyl), —C0-8alkyl-S(O)0-2—C0-8alkyl, —C0-8alkyl-S(O)2N(C0-8alkyl)(C0-8alkyl), or C0-8alkyl optionally substituted with OH;
R31 is C0-8alkyl substituted by morpholinyl;
R32 and R33 are independently —CF3, —CHF2, —C0-8alkyl-O—C0-8alkyl, C0-8alkyl-N(C0-8alkyl)(C0-8alkyl), C0-8alkyl-S(O)0-2—C0-8alkyl, or —C0-8alkyl-S(O)2N(C0-8alkyl)(C0-8alkyl);
provided that when Y is —OCH2—, Z must be substituted with 1-5 —NR34R35, —NR34COR35, —NR,34C(O)OR35, —NR34SO2R35, —OR34, —SR34, —SO2R34, —SO2NR34R35, —CO2R34, —CO2H, —CONR34 R35, C0-8alkyl, C2-8alkenyl, C2-8alkynyl, CF3, NO2, oxo, or carbocyclyl substituents optionally substituted with OH;
or a pharmaceutically acceptable salt or N-oxide thereof.