1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → HCID 68355427, compound

HRID 1800278Notes

Reaction equation

HRID 1800278 reaction equation
[Li+].[CH:2]([N:5]1[C:9]([C:10]2[N:19]=[C:18]3[N:12]([CH2:13][CH2:14][O:15][C:16]4[CH:23]=[C:22]([NH:24][CH2:25][C:26]([O-])=[O:27])[CH:21]=[CH:20][C:17]=43)[CH:11]=2)=[N:8][CH:7]=[N:6]1)([CH3:4])[CH3:3].C([N:31]=C=NCCCN(C)C)C.O.ON1C2C=CC=CC=2N=N1.CCN(C(C)C)C(C)C.[Cl-].[NH4+]>CN(C=O)C>[CH:2]([N:5]1[C:9]([C:10]2[N:19]=[C:18]3[C:17]4[CH:20]=[CH:21][C:22]([NH:24][CH2:25][C:26]([NH2:31])=[O:27])=[CH:23][C:16]=4[O:15][CH2:14][CH2:13][N:12]3[CH:11]=2)=[N:8][CH:7]=[N:6]1)([CH3:4])[CH3:3]

Participants

7

Reactant 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 25517Ammonium ChlorideHCID 81531DiisopropylethylamineHCID 27960291-Hydroxybenzotriazole hydrateHCID 67050783HCID 67050783, compound

Product 1

HCID 68355427HCID 68355427, compoundYield 37.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of [2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-ylamino]-acetic acid lithium salt (130 mg, 0.35 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (82 mg, 0.42 mmol), 1-hydroxybenzotriazole hydrate (55 mg, 0.42 mmol) and DIPEA (0.42 mL, 1.4 mmol) in DMF (2 mL) was stirred at RT for 5 min before ammonium chloride (55 mg, 1.05 mmol) was added and the reaction stirred at RT for 18 h. The mixture was concentrated in vacuo and the resultant residue triturated with water. The solid was filtered off, washed with water then dried in vacuo. The resultant residue was subjected to flash chromatography (SiO2, gradient 0 to 10% methanol in DCM) to give 444 (48 mg, 37%). LCMS: RT=2.10 min, [M+H]+=368. 1H NMR 400 MHz (DMSO-d6) δ: 8.12 (1H, d, J=8.80 Hz), 7.88 (1H, d, J=0.63 Hz), 7.77 (1H, s), 7.37 (1H, br, s), 7.11 (1H, br, s), 6.45 (1H, dd, J=8.84, 2.36 Hz), 6.32 (1H, br, t), 6.10 (1H, d, J=2.33 Hz), 5.92 (1H, m), 4.42 (4H, m), 3.63 (2H, d, J=5.84 Hz), 1.47 (6H, d, J=6.60 Hz)

Workup

  1. additionwas added
  2. concentrationThe mixture was concentrated in vacuo
  3. customthe resultant residue triturated with water
  4. filtrationThe solid was filtered off
  5. washwashed with water
  6. customthen dried in vacuo

Sources & evidence

ORD record
ord-bda3a67c571f4a98ac37c3b23545db36
Source dataset
uspto-grants-2013_01
Patent number
US08343955B2

Reaction notes

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