Pivaloyl chloride → HCID 11419999, compound

HRID 1244364Notes

Reaction equation

HRID 1244364 reaction equation
Cl.[CH3:2][O:3][C:4]1[C:9]2[N:10]=[C:11]([C:13]3[NH:22][C:16]4[CH2:17][CH2:18][NH:19][CH2:20][CH2:21][C:15]=4[N:14]=3)[S:12][C:8]=2[C:7]([N:23]2[CH2:28][CH2:27][O:26][CH2:25][CH2:24]2)=[CH:6][CH:5]=1.C(N(C(C)C)C(C)C)C.[C:38](Cl)(=[O:43])[C:39]([CH3:42])([CH3:41])[CH3:40]>O1CCCC1>[CH3:2][O:3][C:4]1[C:9]2[N:10]=[C:11]([C:13]3[NH:22][C:16]4[CH2:17][CH2:18][N:19]([C:38](=[O:43])[C:39]([CH3:42])([CH3:41])[CH3:40])[CH2:20][CH2:21][C:15]=4[N:14]=3)[S:12][C:8]=2[C:7]([N:23]2[CH2:24][CH2:25][O:26][CH2:27][CH2:28]2)=[CH:6][CH:5]=1

Participants

5

Reactant 3

HCID 62493Pivaloyl chlorideHCID 81531DiisopropylethylamineHCID 114415902-(4-Methoxy-7-morpholin-4-yl-benzothiazol-2-yl)-1,4,5,6,7,8-hexahydro-imidazo[4,5-d]azepine hydrochloride

Product 1

HCID 11419999HCID 11419999, compoundYield 105.6%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a suspension of 0.04 g 2-(4-methoxy-7-morpholin-4-yl-benzothiazol-2-yl)-1,4,5,6,7,8-hexahydro-imidazo[4,5-d]azepine hydrochloride in 3.4 ml tetrahydrofurane were added at 0–4° C. 0.07 ml N-ethyldiisopropylamine and 0.014 g pivaloyl chloride. The mixture was refluxed for 17 hours, silicagel was added and the solvent was distilled off. The residue was transferred to a column prefilled with silicagel and was chromatographed with dichloromethane/methanol 96:4 to yield 0.047 g (88%) 1-[2-(4-methoxy-7-morpholin-4-yl-benzothiazol-2-yl)-4,5,7,8-tetrahydro-1H-imidazo[4,5-d]azepin-6-yl]-2,2-dimethyl-propan-1-one as yellow solid; MS (ISP): m/e=470 (M+H+).

Workup

  1. additionwere added at 0–4° C
  2. temperatureThe mixture was refluxed for 17 hours
  3. additionsilicagel was added
  4. distillationthe solvent was distilled off
  5. customwas chromatographed with dichloromethane/methanol 96:4

Sources & evidence

ORD record
ord-bfa27a3850cb40e1929e7e3a1db43b03
Source dataset
uspto-grants-2006_10
Patent number
US07122545B2

Reaction notes

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