Furfurylamine → Ethyl 2-(4-fluorobenzyl)-4-(6-{[(2-furylmethyl)amino]carbonyl}-3-pyridazinyl)-5-oxo-7,8,9,9a-tetrahydro-5H-pyrido[2,3-alpha]pyrrolizine-3-carboxylate

HRID 458451Notes

Reaction equation

HRID 458451 reaction equation
[CH2:1]([O:3][C:4]([C:6]1[C:18]([CH2:19][C:20]2[CH:25]=[CH:24][C:23]([F:26])=[CH:22][CH:21]=2)=[N:17][C:9]2[CH:10]3[N:14]([C:15](=[O:16])[C:8]=2[C:7]=1[C:27]1[N:32]=[N:31][C:30]([C:33]([OH:35])=O)=[CH:29][CH:28]=1)[CH2:13][CH2:12][CH2:11]3)=[O:5])[CH3:2].[CH2:36]([NH2:42])[C:37]1[O:41][CH:40]=[CH:39][CH:38]=1.Cl.CN(C)CCCN=C=NCC.O.ON1C2C=CC=CC=2N=N1>ClCCl>[F:26][C:23]1[CH:22]=[CH:21][C:20]([CH2:19][C:18]2[C:6]([C:4]([O:3][CH2:1][CH3:2])=[O:5])=[C:7]([C:27]3[N:32]=[N:31][C:30]([C:33]([NH:42][CH2:36][C:37]4[O:41][CH:40]=[CH:39][CH:38]=4)=[O:35])=[CH:29][CH:28]=3)[C:8]3[C:15](=[O:16])[N:14]4[CH:10]([CH2:11][CH2:12][CH2:13]4)[C:9]=3[N:17]=2)=[CH:25][CH:24]=1

Participants

6

Reactant 4

HCID 3438FurfurylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 697426146-[3-(Ethoxycarbonyl)-2-(4-fluorobenzyl)-5-oxo-7,8,9,9a-tetrahydro-5h-pyrido[2,3-a]pyrrolizin-4-yl]-3-pyridazinecarboxylic acid

Product 1

HCID 69743112Ethyl 2-(4-fluorobenzyl)-4-(6-{[(2-furylmethyl)amino]carbonyl}-3-pyridazinyl)-5-oxo-7,8,9,9a-tetrahydro-5H-pyrido[2,3-alpha]pyrrolizine-3-carboxylate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

The mixture of 6-[3-(ethoxycarbonyl)-2-(4-fluorobenzyl)-5-oxo-7,8,9,9a-tetrahydro-5H-pyrido[2,3-α]pyrrolizin-4-yl]-3-pyridazinecarboxylic acid (G, 33 mg, 0.07 mmol), furfurylamine (19.3 mmol, 0.14 mmol), 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (26.7 mg, 0.14 mmol) and 1-hydroxybenzotriazole hydrate (18.8 mg, 0.14 mmol) in 2 ml dichloromethane was stirred for 2 hours. The mixture was then partitioned between water and ethyl acetate. The organic was washed with brine and dried over sodium sulfate. The residue upon the removal of the solvent was purified with flash chromatography. Twelve (12) mg white solid was obtained. NMR (400 MHz, CDCl3) δ 8.38 (d, 1H), 8.08 (d, 1H), 7.20 (t, 2H), 6.92 (t, 2H), 4.78 (m, 1H), 4.67 (d, 2H), 4.40 (dd, 2H), 3.90 (q, 2H), 3.64 (m, 1H), 3.39 (m, 1H), 2.48 (m, 1H), 2.35 (m, 2H), 1.40 (m, 1H), 0.90 (t, 3H) ppm. ESI-MS m/z 556 (M+H)+.

Workup

  1. customThe mixture was then partitioned between water and ethyl acetate
  2. washThe organic was washed with brine
  3. dry with materialdried over sodium sulfate
  4. customThe residue upon the removal of the solvent
  5. customwas purified with flash chromatography
  6. customwas obtained

Sources & evidence

ORD record
ord-1c6202e0957a4f41afaf06bbca2d480f
Source dataset
uspto-grants-2007_03
Patent number
US07189851B2

Reaction notes

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