1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 58204727, compound

HRID 1800291Notes

Reaction equation

HRID 1800291 reaction equation
[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[N:11]([CH2:12][CH2:13][O:14][C:15]4[CH:22]=[C:21]([N:23]5[CH2:28][CH2:27][CH2:26][CH2:25][CH:24]5[C:29](O)=[O:30])[CH:20]=[CH:19][C:16]=43)[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2].CC[N:34]=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.[Cl-].[NH4+]>CN(C=O)C>[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[C:16]4[CH:19]=[CH:20][C:21]([N:23]5[CH2:28][CH2:27][CH2:26][CH2:25][CH:24]5[C:29]([NH2:34])=[O:30])=[CH:22][C:15]=4[O:14][CH2:13][CH2:12][N:11]3[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2]

Participants

7

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 25517Ammonium ChlorideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 58204782HCID 58204782, compound

Product 1

HCID 58204727HCID 58204727, compoundYield 7%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 1-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-piperidine-2-carboxylic acid (1.15 g, 2.73 mmol), EDCI (0.58 g, 3.0 mmol), HOBt (0.41 g, 3.0 mmol) and DIPEA (2.34 mL, 13.65 mmol) in DMF was stirred at RT (2 mL) for 5 min before ammonium chloride (0.44 g, 8.18 mmol) was added and the reaction mixture stirred for 18 h. The reaction mixture was concentrated in vacuo and the resultant residue triturated with water before being subjected to flash chromatography (SiO2, gradient 0 to 10% methanol in DCM) to give 459 as a white solid (0.08 g, 6%). LCMS: RT=3.48 min, [M+H]+=422. 1H NMR 400 MHz (DMSO-d6) δ: 8.18 (1H, d, J=9.06 Hz), 7.89 (1H, d, J=0.63 Hz), 7.80 (1H, s), 7.31 (1H, br, s), 7.01 (1H, br, s), 6.72 (1H, dd, J=9.16, 2.60 Hz), 6.40 (1H, d, J=2.54 Hz), 5.92-5.91 (1H, m), 4.44-4.43 (4H, m), 4.39 (1H, m), 3.60 (1H, d, J=12.44 Hz), 3.39-3.32 (1H, m), 2.06 (1H, d, J=13.57 Hz), 1.75 (2H, m), 1.58 (3H, m), 1.48 (6H, dd, J=6.60, 2.59 Hz)

Workup

  1. additionwas added
  2. concentrationThe reaction mixture was concentrated in vacuo
  3. customthe resultant residue triturated with water

Sources & evidence

ORD record
ord-21a505f4e31b4149b946aa6eb4fcaa32
Source dataset
uspto-grants-2013_01
Patent number
US08343955B2

Reaction notes

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