As a common heterocyclic compound, it belongs to benzoxazole compound, name is 6-Bromobenzo[d]oxazole, and cas is 375369-14-5, its synthesis route is as follows.
(b) 6-{4-[l-{[(35)-l-(Cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}-5- (trifluoromethyl)-lH-benzimidazol-2-yl]phenyl}-l,3-benzoxazole1 – { [(3 S)- 1 -(Cyclopropylcarbonyl)-3-pyrrolidinyl]methyl} -2-[4-(4,4,5 ,5-tetramethyl- 1,3,2- dioxaborolan-2-yl)phenyl]-5-(trifluoromethyl)-lH-benzimidazole (120 mg, 0.167 mmol) was dissolved in 1,4-dioxane (1.5 mL) in 5-mLmicrowave vial. 6-bromo-l,3-benzoxazole (33.0 mg, 0.167 mmol), PdCl2(dppf)-CH2Cl2 adduct (6.81 mg, 8.34 mu?omega), and 2 M aqueous potassium carbonate (0.250 mL, 0.501 mmol) were added with stirring. The vial was purged with nitrogen, sealed and heated at 100 C for 2 hr. The reaction mixture was allowed to cool to RT and was diluted with water (50 mL). The pH was adjusted to 7 with 1 N HC1 and the mixture was extracted with DCM (3 x 50 mL). The combined extracts were dried over sodium sulfate, evaporated to dryness, and purified by silica gel column chromatography using a gradient of 0-10% MeOH/DCM, followed by preparative reverse phase hplc using a gradient of 1% aqueous NH4OH/acetonitrile, to afford 18 mg of the titled compound. (LCMS m z 531.0, M+H).
375369-14-5, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,375369-14-5 ,6-Bromobenzo[d]oxazole, other downstream synthetic routes, hurry up and to see
Reference:
Patent; GLAXOSMITHKLINE LLC; HALLMAN, Jason; LAUDEMAN, Christopher; LIU, Ronggang; MILLER, Aaron; MOORE, Michael, Lee; DOCK, Steven; MUSSO, David; PARRISH, Cynthia; WO2011/56635; (2011); A1;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem