1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 59140152, compound

HRID 2076207Notes

Reaction equation

HRID 2076207 reaction equation
[F:1][C:2]1[C:3]2[N:4]([CH:20]=[N:21][CH:22]=2)[C:5]([NH:11][C:12]2[CH:17]=[CH:16][C:15]([I:18])=[CH:14][C:13]=2[F:19])=[C:6]([C:8](O)=[O:9])[CH:7]=1.[CH:23]([O:25][CH2:26][CH2:27][O:28][NH2:29])=[CH2:24].CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C>CN(C=O)C>[CH:23]([O:25][CH2:26][CH2:27][O:28][NH:29][C:8]([C:6]1[CH:7]=[C:2]([F:1])[C:3]2[N:4]([CH:20]=[N:21][CH:22]=2)[C:5]=1[NH:11][C:12]1[CH:17]=[CH:16][C:15]([I:18])=[CH:14][C:13]=1[F:19])=[O:9])=[CH2:24]

Participants

7

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 21867017O-(2-(Vinyloxy)ethyl)hydroxylamineHCID 59140183HCID 59140183, compound

Product 1

HCID 59140152HCID 59140152, compoundYield 83.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

8-Fluoro-5-(2-fluoro-4-iodo-phenylamino)-imidazo[1,5-a]pyridine-6-carboxylic acid (0.20 g, 0.48 mmol), O-(2-vinyloxyethyl)-hydroxylamine (55 mg, 0.53 mmol), EDCI (102 mg, 0.53 mmol), HOBt (72 mg, 0.53 mmol) and DIPEA (90 μL, 0.53 mmol) were dissolved in DMF (10 mL) and the reaction mixture stirred at room temperature for 16 hours before being concentrated in vacuo. The resultant residue was dissolved in ethyl acetate (10 mL), washed with aqueous saturated sodium bicarbonate solution (10 mL) and the aqueous fraction extracted twice with ethyl acetate (2×10 mL). The combined organic fractions were washed with brine (20 mL), dried (MgSO4) and concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, gradient 0-10% methanol in DCM) to yield the title compound as a pale yellow solid (200 mg, 83%). LCMS (Method B): RT=3.41 min, [M+H]+=501.

Workup

  1. concentrationbefore being concentrated in vacuo
  2. dissolutionThe resultant residue was dissolved in ethyl acetate (10 mL)
  3. washwashed with aqueous saturated sodium bicarbonate solution (10 mL)
  4. extractionthe aqueous fraction extracted twice with ethyl acetate (2×10 mL)
  5. washThe combined organic fractions were washed with brine (20 mL)
  6. dry with materialdried (MgSO4)
  7. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-f7333b87f2cd4846ac1511392abf052b
Source dataset
uspto-grants-2011_04
Patent number
US07923456B2

Reaction notes

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