Diisopropylethylamine → 5-(2-(1,3-dioxolan-2-yl)ethyl)-2-phenyl-N-(2-(thiazolo[5,4-b]pyridin-2-yl)phenyl)thiazole-4-carboxamide

HRID 453305

Reaction equation

HRID 453305 reaction equation
C[NH3+].F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.F[P-](F)(F)(F)(F)F.[O:34]1[CH2:38][CH2:37][O:36][CH:35]1[CH2:39][CH2:40][C:41]1[S:45][C:44]([C:46]2[CH:51]=[CH:50][CH:49]=[CH:48][CH:47]=2)=[N:43][C:42]=1[C:52]([OH:54])=O.CCN(C(C)C)C(C)C.[N:64]1[C:72]2[C:67](=[N:68][CH:69]=[CH:70][CH:71]=2)[S:66][C:65]=1[C:73]1[CH:79]=[CH:78][CH:77]=[CH:76][C:74]=1[NH2:75].C([O-])(O)=O.[Na+]>CN(C=O)C>[O:36]1[CH2:37][CH2:38][O:34][CH:35]1[CH2:39][CH2:40][C:41]1[S:45][C:44]([C:46]2[CH:47]=[CH:48][CH:49]=[CH:50][CH:51]=2)=[N:43][C:42]=1[C:52]([NH:75][C:74]1[CH:76]=[CH:77][CH:78]=[CH:79][C:73]=1[C:65]1[S:66][C:67]2[C:72]([N:64]=1)=[CH:71][CH:70]=[CH:69][N:68]=2)=[O:54]

Participants

7

Reactant 5

HCID 81531DiisopropylethylamineHCID 516892Sodium BicarbonateHCID 581014682-(Thiazolo[5,4-b]pyridin-2-yl)anilineHCID 585519085-(2-(1,3-Dioxolan-2-yl)ethyl)-2-phenylthiazole-4-carboxylic acidHCID 866211442-(1H-7-Azabenzotriazol-1-yl)-1,1,3,3-tetramethyl uronium hexafluorophosphate Methanaminium

Product 1

HCID 585519015-(2-(1,3-dioxolan-2-yl)ethyl)-2-phenyl-N-(2-(thiazolo[5,4-b]pyridin-2-yl)phenyl)thiazole-4-carboxamideYield 66%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

2-(1H-7-Azabenzotriazol-1-yl)-1,1,3,3-tetramethyl uronium hexafluorophosphate methanaminium (HATU) (669 mg, 1.8 mmol) was added to a solution of 5-(2-(1,3-dioxolan-2-yl)ethyl)-2-phenylthiazole-4-carboxylic acid (504 mg, 1.7 mmol), DIPEA (613 μL, 3.5 mmol), and 2-(thiazolo[5,4-b]pyridin-2-yl)aniline b (250 mg, 1.1 mmol) in DMF (7 mL). The reaction mixture was stirred for 16 h, poured into sat aq NaHCO3 and extracted with EtOAc. The organic fractions were washed with brine, dried and concentrated. The crude product was crystallized from EtOH to give 5-(2-(1,3-dioxolan-2-yl)ethyl)-2-phenyl-N-(2-(thiazolo[5,4-b]pyridin-2-yl)phenyl)thiazole-4-carboxamide (372 mg, 66% yield).

Workup

  1. additionpoured
  2. extractionextracted with EtOAc
  3. washThe organic fractions were washed with brine
  4. customdried
  5. concentrationconcentrated
  6. customThe crude product was crystallized from EtOH

Sources & evidence

ORD record
ord-d34b1801a0b94ee3a4538788698033ce
Source dataset
uspto-grants-2013_07
Patent number
US08492401B2

Linked notes

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