Methanamine, N-methoxy-, hydrochloride (1:1) → 2-(4-(1,3-dioxan-2-yl)-2-fluorophenyl)-N-methoxy-N-methylbenzo[d]thiazole-6-carboxamide

HRID 1177552Notes

Reaction equation

HRID 1177552 reaction equation
CN([C:4]([O:8][N:9]1N=NC2C=CC=C[C:10]1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(C(C)C)CC)(C)C.Cl.CNOC.[O:39]1[CH2:44][CH2:43][CH2:42][O:41][CH:40]1[C:45]1[CH:50]=[CH:49][C:48]([C:51]2[S:52][C:53]3[CH:59]=[C:58]([C:60]([OH:62])=O)[CH:57]=[CH:56][C:54]=3[N:55]=2)=[C:47]([F:63])[CH:46]=1>CN(C=O)C.O>[O:39]1[CH2:44][CH2:43][CH2:42][O:41][CH:40]1[C:45]1[CH:50]=[CH:49][C:48]([C:51]2[S:52][C:53]3[CH:59]=[C:58]([C:60]([N:9]([O:8][CH3:4])[CH3:10])=[O:62])[CH:57]=[CH:56][C:54]=3[N:55]=2)=[C:47]([F:63])[CH:46]=1

Participants

7

Reactant 4

HCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 671115482-(4-(1,3-Dioxan-2-yl)-2-fluorophenyl)benzo[d]thiazole-6-carboxylic acid

Product 1

HCID 866387232-(4-(1,3-dioxan-2-yl)-2-fluorophenyl)-N-methoxy-N-methylbenzo[d]thiazole-6-carboxamide

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

HBTU (0.80 g, 2.11 mmol) was added to a solution of di-isopropylethylamine (0.61 mL, 3.52 mmol), N,O-dimethylhydroxylamine hydrochloride (0.21 g, 2.11 mmol), and 2-(4-(1,3-dioxan-2-yl)-2-fluorophenyl)benzo[d]thiazole-6-carboxylic acid (0.51 g, 1.41 mmol) in DMF (7 mL). The reaction mixture was stirred for 30 min, diluted with water, and extracted with EtOAc three times. The combined extracts were dried (MgSO4), concentrated under vacuum, and purified by silica gel chromatography to give 2-(4-(1,3-dioxan-2-yl)-2-fluorophenyl)-N-methoxy-N-methylbenzo[d]thiazole-6-carboxamide as an oil. MS (ESI) m/z: Calculated: 402.1; Observed: 403.1 (M++1).

Workup

  1. extractionextracted with EtOAc three times
  2. dry with materialThe combined extracts were dried (MgSO4)
  3. concentrationconcentrated under vacuum
  4. custompurified by silica gel chromatography

Sources & evidence

ORD record
ord-357d324dff4a4893838a36d48bbbc423
Source dataset
uspto-grants-2010_11
Patent number
US07842685B2

Reaction notes

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