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1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 2-Chloro-N-[1-(cyanomethyl)-2-oxo-1,2,3,4-tetrahydroquinolin-3-yl]-6H-thieno[2,3-b]pyrrole-5-carboxamide

HRID 1247505
Notes
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Reaction equation

HRID 1247505 reaction equation
CC[N:3]=C=NCCCN(C)C.[Cl:12][C:13]1[S:39][C:16]2[NH:17][C:18]([C:20]([NH:22][CH:23]3[CH2:32][C:31]4[C:26](=[CH:27][CH:28]=[CH:29][CH:30]=4)[N:25]([CH2:33][CH:34](O)CO)[C:24]3=[O:38])=[O:21])=[CH:19][C:15]=2[CH:14]=1.ClC1SC2NC(C(NC3CC4C(=CC=CC=4)N(C[C@@H](O)CO)C3=O)=O)=CC=2C=1>C(Cl)Cl>[Cl:12][C:13]1[S:39][C:16]2[NH:17][C:18]([C:20]([NH:22][CH:23]3[CH2:32][C:31]4[C:26](=[CH:27][CH:28]=[CH:29][CH:30]=4)[N:25]([CH2:33][C:34]#[N:3])[C:24]3=[O:38])=[O:21])=[CH:19][C:15]=2[CH:14]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 104771912-chloro-N-[1-[(2R)-2,3-dihydroxypropyl]-2-oxo-3,4-dihydroquinolin-3-yl]-6H-thieno[2,3-b]pyrrole-5-carboxamideHCID 117428502-chloro-N-(1-(2,3-dihydroxypropyl)-2-oxo-1,2,3,4-tetrahydroquinolin-3-yl)-6H-thieno(2,3-b)pyrrole-5-carboxamide

Product 1

HCID 104526402-Chloro-N-[1-(cyanomethyl)-2-oxo-1,2,3,4-tetrahydroquinolin-3-yl]-6H-thieno[2,3-b]pyrrole-5-carboxamide
Yield 21%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

EDCI (1.09 g, 5.65 mmol) was added to a suspension of 5-Carboxy-2-chloro-6H-thieno[2,3-b]pyrrole (Method 9, 1.04 g, 5.13 mmol) and (3-amino-2-oxo-3,4-dihydroquinolin-1(2H)-yl)acetonitrile (Method 13; 1.29 g, 5.13 mmol) in DCM (30 mL) and the reaction stirred for 18 hours. The reaction was evaporated and the residue was partitioned between DCM:MeOH (9:1) (100 mL) and aqueous K2CO3 (25 mL). The organic layer was then separated, dried (MgSO4), filtered and evaporated. The residue was purified by column chromatography (DCM to DCM:MeOH (9:1)) to give a brown solid. The solid was triturated with refluxing Et2O (25 mL) and the solid filtered, washed with Et2O (25 mL) then hexane (25 mL) to afford the title compound (414 mg, 21%) as a pale brown solid.

Workup

  1. customThe reaction was evaporated
  2. customthe residue was partitioned between DCM:MeOH (9:1) (100 mL) and aqueous K2CO3 (25 mL)
  3. customThe organic layer was then separated
  4. dry with materialdried (MgSO4)
  5. filtrationfiltered
  6. customevaporated
  7. customThe residue was purified by column chromatography (DCM to DCM:MeOH (9:1))
  8. customto give a brown solid
  9. customThe solid was triturated with refluxing Et2O (25 mL)
  10. filtrationthe solid filtered
  11. washwashed with Et2O (25 mL)

Sources & evidence

ORD record
ord-9c891bec6dbd494ebfa4bdc14e80f768
Source dataset
uspto-grants-2006_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07129249B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes