2,4-Dimethylbenzoic acid → HCID 59314366, compound

HRID 1047885Notes

Reaction equation

HRID 1047885 reaction equation
[CH3:1][C:2]1[CH:10]=[C:9]([CH3:11])[CH:8]=[CH:7][C:3]=1[C:4]([OH:6])=O.[CH2:12]([O:14][C:15]([C:17]1([NH2:26])[CH2:25][C:24]2[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=2)[CH2:18]1)=[O:16])[CH3:13].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.O>[CH2:12]([O:14][C:15]([C:17]1([NH:26][C:4](=[O:6])[C:3]2[CH:7]=[CH:8][C:9]([CH3:11])=[CH:10][C:2]=2[CH3:1])[CH2:25][C:24]2[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=2)[CH2:18]1)=[O:16])[CH3:13]

Participants

7

Reactant 4

HCID 118972,4-Dimethylbenzoic acidHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 10921653Ethyl 2-amino-2,3-dihydro-1H-indene-2-carboxylate

Product 1

HCID 59314366HCID 59314366, compoundYield 84%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of 2,4-dimethyl-benzoic acid (219 mg, 1.46 mmol), 2-amino-indan-2-carboxylic acid ethyl ester (300 mg, 1.46 mmol), HATU (666 mg, 1.75 mmol) in anhydrous DMF (1.8 mL) is added DIPEA (381 μL, 2.19 mmol). The resulting solution is stirred at RT overnight. Water (10 mL) is poured into the reaction mixture, and then extracted with EtOAc (3×5 mL). The combined organic layers and concentrated in vacuo. The residue is purified by flash column chromatography (12 g silica gel, gradient elution: 0-30% EtOAc in heptane) to give product (274) as white solid (414 mg, 84%).

Workup

  1. extractionextracted with EtOAc (3×5 mL)
  2. concentrationThe combined organic layers and concentrated in vacuo
  3. customThe residue is purified by flash column chromatography (12 g silica gel, gradient elution: 0-30% EtOAc in heptane)

Sources & evidence

ORD record
ord-bfa68cb07bcc45c29b3c56ffb075c558
Source dataset
uspto-grants-2013_10
Patent number
US08569535B2

Reaction notes

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