Boron tribromide → HCID 135581749, compound

HRID 333714Notes

Reaction equation

HRID 333714 reaction equation
C[O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[N:10]=[C:11]([N:19]2[CH2:24][CH2:23][CH:22]([NH:25][C:26](=[O:32])[O:27][CH2:28][CH:29]([CH3:31])[CH3:30])[CH2:21][CH2:20]2)[C:12]2[C:17]([CH3:18])=[CH:16][S:15][C:13]=2[N:14]=1.B(Br)(Br)Br.C([O-])(O)=O.[Na+]>C(Cl)Cl>[OH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[N:10]=[C:11]([N:19]2[CH2:24][CH2:23][CH:22]([NH:25][C:26](=[O:32])[O:27][CH2:28][CH:29]([CH3:30])[CH3:31])[CH2:21][CH2:20]2)[C:12]2[C:17]([CH3:18])=[CH:16][S:15][C:13]=2[N:14]=1

Participants

5

Reactant 3

HCID 25134Boron tribromideHCID 516892Sodium BicarbonateHCID 59026643HCID 59026643, compound

Product 1

HCID 135581749HCID 135581749, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of isobutyl 1-(2-(2-methoxyphenyl)-5-methylthieno[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (0.127 g, 0.28 mmol) in CH2Cl2 (2 mL) was cooled to −50° C., and a solution of BBr3 in CH2Cl2 (1 M, 1.7 mL, 1.7 mmol) was slowly added. The reaction was allowed to gradually warm to room temperature over 1 h, and saturated aqueous NaHCO3 was slowly added. The organic layer was separated, washed with water, dried over Na2SO4, and concentrated under vacuum. The residue was purified by preparative reverse phase HPLC using 10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA) to give Isobutyl 1-(2-(2-hydroxyphenyl)-5-methylthieno[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate. LC/MS: m/z 441.5 (M+H)+ at 4.02 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Workup

  1. customThe organic layer was separated
  2. washwashed with water
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated under vacuum
  5. customThe residue was purified by preparative reverse phase

Sources & evidence

ORD record
ord-fc3b25cca2a54c14b8c78d22e2839485
Source dataset
uspto-grants-2014_11
Patent number
US08883781B2

Reaction notes

Loading…