5-Ethynyl-1-methyl-1H-imidazole → Ethyl 1-[5-[2-(ethylcarbamoylamino)-7-[2-(3-methylimidazol-4-yl)ethynyl]-1,3-benzothiazol-5-yl]pyrimidin-2-yl]-4-methyl-piperidine-4-carboxylate

HRID 712300Notes

Reaction equation

HRID 712300 reaction equation
Br[C:2]1[C:10]2[S:9][C:8]([NH:11][C:12](=[O:16])[NH:13][CH2:14][CH3:15])=[N:7][C:6]=2[CH:5]=[C:4]([C:17]2[CH:18]=[N:19][C:20]([N:23]3[CH2:28][CH2:27][C:26]([CH3:34])([C:29]([O:31][CH2:32][CH3:33])=[O:30])[CH2:25][CH2:24]3)=[N:21][CH:22]=2)[CH:3]=1.[C:35]([C:37]1[N:41]([CH3:42])[CH:40]=[N:39][CH:38]=1)#[CH:36]>C(N(CC)CC)C.CCOC(C)=O.[Cu]I.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH2:14]([NH:13][C:12]([NH:11][C:8]1[S:9][C:10]2[C:2]([C:36]#[C:35][C:37]3[N:41]([CH3:42])[CH:40]=[N:39][CH:38]=3)=[CH:3][C:4]([C:17]3[CH:22]=[N:21][C:20]([N:23]4[CH2:24][CH2:25][C:26]([CH3:34])([C:29]([O:31][CH2:32][CH3:33])=[O:30])[CH2:27][CH2:28]4)=[N:19][CH:18]=3)=[CH:5][C:6]=2[N:7]=1)=[O:16])[CH3:15]

Participants

7

Reactant 2

HCID 33331065-Ethynyl-1-methyl-1H-imidazoleHCID 86663956Ethyl 1-(5-(7-bromo-2-(3-ethylureido)benzo[d]thiazol-5-yl)pyrimidin-2-yl)-4-methylpiperidine-4-carboxylate

Product 1

HCID 86664015Ethyl 1-[5-[2-(ethylcarbamoylamino)-7-[2-(3-methylimidazol-4-yl)ethynyl]-1,3-benzothiazol-5-yl]pyrimidin-2-yl]-4-methyl-piperidine-4-carboxylate

Reagents, catalysts & solvents 4

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418476HCID 178418476, compoundCatalystHCID 8471TriethylamineSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

Ethyl 1-[5-[7-bromo-2-(ethylcarbamoylamino)-1,3-benzothiazol-5-yl]pyrimidin-2-yl]-4-methyl-piperidine-4-carboxylate (150 mg, 0.27 mmol), copper(I) iodide (5 mg, 0.027 mmol) and 5-ethynyl-1-methyl-1H-imidazole (56 μl, 0.54 mmol) were dissolved in triethylamine (2 mL) and DMF (1 mL) and the mixture deoxygenated by bubbling N2 through the solution for 20 min. Pd(PPh3)2Cl2, (19 mg, 0.027 mmol) was added and the reaction heated to 80° C. for 4 h under a N2 atmosphere, at the end of which time LCMS indicated product formation. The reaction was diluted with EtOAc, washed with water then brine and the organic layer dried (MgSO4), filtered and the solvent removed in vacuo to give the desired compound.

Workup

  1. customDMF (1 mL) and the mixture deoxygenated
  2. customby bubbling N2 through the solution for 20 min
  3. washwashed with water
  4. dry with materialbrine and the organic layer dried (MgSO4)
  5. filtrationfiltered
  6. customthe solvent removed in vacuo

Sources & evidence

ORD record
ord-aeea21eb23fd431d99742c7009c3bf8e
Source dataset
uspto-grants-2015_11
Patent number
US09181234B2

Reaction notes

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