Diisopropylethylamine → HCID 71610613, compound

HRID 1481842Notes

Reaction equation

HRID 1481842 reaction equation
[CH:1]1([C:4]2[O:5][CH:6]=[C:7]([C:9]([OH:11])=O)[N:8]=2)[CH2:3][CH2:2]1.C(N(CC)C(C)C)(C)C.[NH2:21][C:22]1[C:23]([N:41]2[CH2:46][CH2:45][N:44]([C:47]3[CH:52]=[CH:51][CH:50]=[CH:49][C:48]=3[CH3:53])[CH2:43][CH2:42]2)=[CH:24][C:25]([Cl:40])=[C:26]([CH:39]=1)[C:27]([NH:29][CH2:30][CH2:31][CH2:32][N:33]1[CH2:37][CH2:36][CH2:35][C:34]1=[O:38])=[O:28].[Cl-].[Li+]>CN(C=O)C>[Cl:40][C:25]1[C:26]([C:27](=[O:28])[NH:29][CH2:30][CH2:31][CH2:32][N:33]2[CH2:37][CH2:36][CH2:35][C:34]2=[O:38])=[CH:39][C:22]([NH:21][C:9]([C:7]2[N:8]=[C:4]([CH:1]3[CH2:2][CH2:3]3)[O:5][CH:6]=2)=[O:11])=[C:23]([N:41]2[CH2:42][CH2:43][N:44]([C:47]3[CH:52]=[CH:51][CH:50]=[CH:49][C:48]=3[CH3:53])[CH2:45][CH2:46]2)[CH:24]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 433294Lithium ChlorideHCID 252192732-Cyclopropyl-1,3-oxazole-4-carboxylic acidHCID 89690513HCID 89690513, compound

Product 1

HCID 71610613HCID 71610613, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

To a solution of 2-cyclopropyl-oxazole-4-carboxylic acid 1h (122.2 mg, 0.79 mmol) in DMF (5.0 mL) HATU (404.4 mg, 1.06 mmol) was added and stirred for 3 min. N,N-diisopropylethylamine (0.46 mL, 2.66 mmol) was added to this followed by 5-amino-2-chloro-N-[3-(2-oxo-pyrrolidin-1-yl)-propyl]-4-(4-o-tolyl-piperazin-1-yl)-benzamide 1g (250.0 mg, 0.53 mmol) in DMF (5.0 mL) and the reaction was stirred at 25° C. for 16 h. LCMS indicated the completion of reaction. Saturated solution of lithium chloride was added to this and the contents were extracted with ethyl acetate, organic layer was dried on anhydrous sodium sulfate, concentrated and the crude ii was purified on preparative HPLC using water/methanol (0.1% TFA) (42.0 mg, 13%).

Workup

  1. stirringthe reaction was stirred at 25° C. for 16 h
  2. customthe completion of reaction
  3. extractionwere extracted with ethyl acetate, organic layer
  4. dry with materialwas dried on anhydrous sodium sulfate
  5. concentrationconcentrated
  6. customthe crude ii was purified on preparative HPLC

Sources & evidence

ORD record
ord-c04eac8984134dd491a5566c15ff823e
Source dataset
uspto-grants-2016_08
Patent number
US09409897B2

Reaction notes

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