1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride → HCID 59605857, compound

HRID 1922724Notes

Reaction equation

HRID 1922724 reaction equation
[NH:1]1[CH2:5][CH2:4][C@H:3]([OH:6])[CH2:2]1.[C:7]([O:11][C:12]([N:14]1[CH2:17][CH:16]([C:18](O)=[O:19])[CH2:15]1)=[O:13])([CH3:10])([CH3:9])[CH3:8].Cl.CN(C)CCCN=C=NCC>ClCCl>[C:7]([O:11][C:12]([N:14]1[CH2:17][CH:16]([C:18]([N:1]2[CH2:5][CH2:4][C@H:3]([OH:6])[CH2:2]2)=[O:19])[CH2:15]1)=[O:13])([CH3:10])([CH3:9])[CH3:8]

Participants

5

Reactant 3

HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2733874(3S)-pyrrolidin-3-olHCID 27559811-Boc-Azetidine-3-carboxylic acid

Product 1

HCID 59605857HCID 59605857, compoundYield 81%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

(S)-Pyrrolidin-3-ol (0.276 g, 3.17 mmol) was added to a mixture of azetidine-1,3-dicarboxylic acid mono-tert-butyl ester (0.4 g, 2.11 mmol) and N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (0.61 g, 3.17 mmol) in dichloromethane (7 mL). The resulting reaction mixture was stirred at RT under nitrogen atmosphere for 48 h. The mixture was diluted with DCM (10 mL) and washed with water (1×15 mL), 10% aqueous citric acid solution (2×15 mL) and brine (2×15 mL), and dried over sodium sulphate. The solvents were reduced in vacuo to afford the title compound as colourless oil (0.46 g, 81%). 1H NMR (400 MHz, CDCl3): δ 4.55-4.48 (1 H, m), 4.17 (2 H, s), 4.05-4.04 (2 H, m), 3.50-3.47 (5 H, m), 2.01-2.00 (2 H, m), 1.43 (9 H, d, J=0.96 Hz).

Workup

  1. customThe resulting reaction mixture
  2. washwashed with water (1×15 mL), 10% aqueous citric acid solution (2×15 mL) and brine (2×15 mL)
  3. dry with materialdried over sodium sulphate

Sources & evidence

ORD record
ord-e7d8219a74a041bc8a0e4df14ece0c60
Source dataset
uspto-grants-2012_05
Patent number
US08173650B2

Reaction notes

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