Diisopropylethylamine → HCID 178452307, compound

HRID 2387404Notes

Reaction equation

HRID 2387404 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[S:9][C:10]2[C:15]([N:16]=1)=[CH:14][C:13]([CH2:17][N:18]1[CH2:23][CH2:22][N:21]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[CH2:20][CH2:19]1)=[CH:12][N:11]=2.[NH:31]1[C:35]([C:36]2[CH:37]=[C:38]([CH:42]=[CH:43][CH:44]=2)[C:39](O)=[O:40])=[N:34][N:33]=[N:32]1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C.CCOC(C)=O>[NH:34]1[C:35]([C:36]2[CH:37]=[C:38]([CH:42]=[CH:43][CH:44]=2)[C:39]([NH:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=2[C:8]2[S:9][C:10]3[C:15]([N:16]=2)=[CH:14][C:13]([CH2:17][N:18]2[CH2:23][CH2:22][N:21]([C:24]([O:26][C:27]([CH3:30])([CH3:29])[CH3:28])=[O:25])[CH2:20][CH2:19]2)=[CH:12][N:11]=3)=[O:40])=[N:31][N:32]=[N:33]1

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 59679847Tert-butyl 4-((2-(2-aminophenyl)thiazolo[5,4-b]pyridin-6-yl)methyl)piperazine-1-carboxylateHCID 178524335HCID 178524335, compound

Product 1

HCID 178452307HCID 178452307, compound

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
50 °C

Procedure

tert-Butyl 4-((2-(2-aminophenyl)thiazolo[5,4-b]pyridin-6-yl)methyl)piperazine-1-carboxylate (85 mg, 0.2 mmol) was taken up in 3 mL of DMF along with 3-(1H-tetrazol-5-yl)benzoic acid (38 mg, 0.2 mmol), HATU (114 mg, 0.3 mmol) and DIEA (35 mL, 0.4 mmol). The reaction mixture was stirred at 50° C. (18 h). It was then diluted with EtOAc (15 mL) and washed with water (3 mL×3). The organic layer was dried (Na2SO4) and concentrated in vacuo to afford crude tert-butyl 4-((2-(2-(3-(1H-tetrazol-5-yl)benzamido)phenyl)thiazolo[5,4-b]pyridin-6-yl)methyl)piperazine-1-carboxylate. This material was taken up in 5 mL of 25% TFA in CH2Cl2 and was allowed to stand at room temperature (18 h). The reaction mixture was concentrated in vacuo and the resulting residue was purified by reverse-phase HPLC to afford 12 mg of N-(2-(6-(piperazin-1-ylmethyl)thiazolo[5,4-b]pyridin-2-yl)phenyl)-3-(1H-tetrazol-5-yl)benzamide as a light yellow solid. 1H NMR (300 MHz, DMSO-d6) δ 9.5 (br s, 2H), 7.5-9.1 (m, 10H), 4.5 (br s, 1H), 3.5-4.0 (m, 10H). MS (ESI) calcd for C25H23N9OS (m/z): 497.17, found: 498.2 (M+1)+.

Workup

  1. washwashed with water (3 mL×3)
  2. dry with materialThe organic layer was dried (Na2SO4)
  3. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-2fbf9d1b262a46e684546f65fd573e25
Source dataset
uspto-grants-2012_09
Patent number
US08268862B2

Reaction notes

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