Triethylamine → HCID 3025933, compound

HRID 2073840Notes

Reaction equation

HRID 2073840 reaction equation
[CH:1]1([N:4]2[C:13]3[C:8](=[C:9]([CH3:17])[C:10]([F:16])=[C:11](F)[C:12]=3[F:14])[C:7](=[O:18])[C:6]([C:19]([OH:21])=[O:20])=[CH:5]2)[CH2:3][CH2:2]1.C(OC([NH:29][CH:30]1[CH2:34][CH2:33][NH:32][CH2:31]1)=O)(C)(C)C.C(N(CC)CC)C>C(#N)C>[NH2:29][CH:30]1[CH2:34][CH2:33][N:32]([C:11]2[C:12]([F:14])=[C:13]3[C:8]([C:7](=[O:18])[C:6]([C:19]([OH:21])=[O:20])=[CH:5][N:4]3[CH:1]3[CH2:3][CH2:2]3)=[C:9]([CH3:17])[C:10]=2[F:16])[CH2:31]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 2757234tert-butyl N-(pyrrolidin-3-yl)carbamateHCID 146512581-Cyclopropyl-5-methyl-6,7,8-trifluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

Product 1

HCID 3025933HCID 3025933, compoundYield 85.2%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A mixture of 1.00 g (3.36 mmol) of 1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-5-methyl-4-oxo-3-quinolinecarboxylic acid, 0.63 g (3.38 mmol) of 3-(t-butoxycarbonyl)aminopyrrolidine, 1.00 g (9.91 mmol) of triethylamine, and 35 ml of acetonitrile was refluxed for five hours, then stirred at room temperature overnight. The precipitate was filtered and washed with acetonitrile and ether. The crude product was suspended in 20 ml of 6M hydrochloric acid and 20 ml of glacial acetic acid and was heated at 60° C. for two hours. The solution was concentrated to an oil which was triturated with isopropanol. The solid was filtered and washed with ether to give 1.04 g of the title compound as the hydrochloride salt, mp >300° C.

Workup

  1. temperaturewas refluxed for five hours
  2. filtrationThe precipitate was filtered
  3. washwashed with acetonitrile and ether
  4. temperature20 ml of glacial acetic acid and was heated at 60° C. for two hours
  5. concentrationThe solution was concentrated to an oil which
  6. customwas triturated with isopropanol
  7. filtrationThe solid was filtered
  8. washwashed with ether

Sources & evidence

ORD record
ord-40add756de1844738af6073e993e88be
Source dataset
uspto-grants-1990_04
Patent number
US04920120

Reaction notes

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