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Volumn 19, Issue 15, 2009, Pages 4151-4158

Novel and potent inhibitors of stearoyl-CoA desaturase-1. Part I: Discovery of 3-(2-hydroxyethoxy)-4-methoxy-N-[5-(3-trifluoromethylbenzyl)thiazol-2-yl]benzamide

Author keywords

SCD1 inhibitors; Thiazole

Indexed keywords

3 (2 HYDROXYETHOXY) 4 METHOXY N [5 (3 TRIFLUOROMETHYLBENZYL)THIAZOL 2 YL]BENZAMIDE; ACYL COENZYME A DESATURASE; ACYL COENZYME A DESATURASE 1; ENZYME INHIBITOR; UNCLASSIFIED DRUG;

EID: 67649962601     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2009.05.119     Document Type: Article
Times cited : (21)

References (30)
  • 10
    • 67649957680 scopus 로고    scopus 로고
    • For the typical structures of Xenon's SCD-1 inhibitors, see: Abreo, M.; Chafeev, M.; Chakka, N.; Chowdhury, S.; Fu, J.-M.; Gschwend, H. W.; Holladay, M. W.; Hou, D.; Kamboj, R.; Kodumuru, V.; Li, W.; Liu, S.: Raina, V.; Sun, S.; Sun, S.; Sviridov, S.; Tu, C.; Winther, M. D.; Zhang, Z. WO2005011655A2, February 10, 2005.
    • For the typical structures of Xenon's SCD-1 inhibitors, see: Abreo, M.; Chafeev, M.; Chakka, N.; Chowdhury, S.; Fu, J.-M.; Gschwend, H. W.; Holladay, M. W.; Hou, D.; Kamboj, R.; Kodumuru, V.; Li, W.; Liu, S.: Raina, V.; Sun, S.; Sun, S.; Sviridov, S.; Tu, C.; Winther, M. D.; Zhang, Z. WO2005011655A2, February 10, 2005.
  • 16
    • 67649911169 scopus 로고    scopus 로고
    • note
    • During the preparation of this manuscript, a group at Dainippon Sumitomo Pharmaceutical reported 4-aminoimidazole based SCD-1 inhibitors, which were derived from a hit compound structurally similar to 5a (Yamaguchi, H. The 27th Medicinal Chemistry Symposium, Osaka, Japan, November, 2008).
  • 17
    • 67649967033 scopus 로고    scopus 로고
    • note
    • 1H NMR and mass spectroscopy.
  • 21
    • 67649998090 scopus 로고    scopus 로고
    • 3):δ 9.84(1H, s), 7.49-7.39(4H, m), 3.02(2H, t, J = 7.4 Hz), 2.83(2H, t, J = 7.6 Hz).
    • 3):δ 9.84(1H, s), 7.49-7.39(4H, m), 3.02(2H, t, J = 7.4 Hz), 2.83(2H, t, J = 7.6 Hz).
  • 22
    • 67649979388 scopus 로고    scopus 로고
    • 5-(3-Trifluoromethylbenzyl)thiazol-2-ylamine (7a, To a solution of 9a (14.0 g) in CH2Cl2 (150 mL) were added l-proline (1.6 g) and N-chlorosuccinimide (12.1 g) at 0 °C. The reaction mixture was warmed to room temperature, stirred for 1.5 h, and diluted with hexane (300 mL, The resulting suspension was vigorously stirred, and filtered. The filtrate was diluted with EtOAc, washed with saturated aqueous NaHCO3 and brine, dried (Na2SO4, and concentrated. The residue (17.4 g) was mixed with thiourea (5.28 g) in EtOH (200 mL, The mixture was heated to reflux for 17 h, concentrated, diluted with EtOAc, washed with saturated aqueous NaHCO3, and concentrated. Chromatography of the residue on SiO2 (Chromatorex NH 100-200 mesh FUJISILYSIA CHEMICAL LTD, CH2Cl2/EtOAC 10:1-3:1) gave 10.2 g (57, of 7a as a beige solid: 1H NMR (400 MHz,CDCl3, δ 7.48-7.462H, m, 7.43
    • +.
  • 23
    • 67649923618 scopus 로고    scopus 로고
    • +.
    • +.
  • 24
    • 67649904903 scopus 로고    scopus 로고
    • +.
    • +.
  • 25
    • 67650001216 scopus 로고    scopus 로고
    • 4-Methoxy-3-[2-(tetrahydropyran-2-yloxy)ethoxy]benzoic acid (12, A solution of 4-methoxy-3-[2-(tetrahydropyran-2-yloxy)ethoxy]benzoic acid methyl ester (14.4 g) in 1 N NaOH (51 mL) and dioxane (140 mL) was heated at 70 °C. The organic solvent was removed by evaporation. The aqueous mixture was acidified with 10% citric acid (aq, and extracted with EtOAc. The organic layer was washed with water and brine, dried (Na2SO4, and concentrated. Chromatography of the residue on SiO2 (CH2Cl2/MeOH 1:0-10:1) gave an impure product, which was vigorously stirred in hexanes/iPr2O (5:1) at 60 °C for 30 min, collected by filtration, and dried in vacuo to give 9.24 g (67, of 12 as a white solid: MS (FAB, m/z: 319 M+Na
    • +.
  • 26
    • 67649964025 scopus 로고    scopus 로고
    • 3-(2-Hydroxyethoxy)-4-methoxy-N-[5-(3-trifluoromethylbenzyl)thiazol-2-yl]benzamide (23a, A solution of 5-(3-trifluoromethylbenzyl)thiazol-2-ylamine (7a, 4.35 g, 4-methoxy-3-[2-(tetrahydropyran-2-yloxy)ethoxy]benzoic acid (12, 5.49 g, HATU (7.03 g, and Et3N (4.7 mL) in DMA (90 mL) was stirred at room temperature for 4 days, and heated at 70 °C for 3 h. The reaction mixture was diluted with EtOAc, washed with saturated aqueous NaHCO3 and brine, dried (Na2SO4, and concentrated. Chromatography of the residue on SiO2 (CH2Cl2/MeOH) gave 9.26 g of the amide. The amide (9.26 g) was mixed with 1 N HCl (17 mL) and MeOH (90 mL, and heated at 50 °C for 2 h. The reaction mixture was neutralized with 2 N NaOH, and the organic solvent was removed by evaporation. The aqueous mixture was extracted with EtOAc. The organic layer was washed with saturated aqueous NaHCO3 and brine, dried Na2SO
    • +.
  • 27
    • 67650001218 scopus 로고    scopus 로고
    • note
    • 14C] C18:4n - 3.
  • 28
    • 67649948556 scopus 로고    scopus 로고
    • note
    • 14C] stearate.
  • 29
    • 67649936091 scopus 로고    scopus 로고
    • note
    • 50.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.