5-Chloro-1H-indole-2-carboxylic acid → (+/-)-trans-N1-(tert-Butoxycarbonyl)-N2-[(5-chloroindol-2-yl)carbonyl]-1,2-cyclohexanediamine

HRID 459472Notes

Reaction equation

HRID 459472 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][C:6]([C:11]([OH:13])=O)=[CH:5]2.O.ON1C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC.[C:37]([O:41][C:42]([NH:44][C@@H:45]1[CH2:50][CH2:49][CH2:48][CH2:47][C@H:46]1[NH2:51])=[O:43])([CH3:40])([CH3:39])[CH3:38]>CN(C)C=O>[C:37]([O:41][C:42]([NH:44][C@@H:45]1[CH2:50][CH2:49][CH2:48][CH2:47][C@H:46]1[NH:51][C:11]([C:6]1[NH:7][C:8]2[C:4]([CH:5]=1)=[CH:3][C:2]([Cl:1])=[CH:10][CH:9]=2)=[O:13])=[O:43])([CH3:40])([CH3:38])[CH3:39]

Participants

6

Reactant 4

HCID 826935-Chloro-1H-indole-2-carboxylic acidHCID 1514390(1R,2R)-trans-N-Boc-1,2-cyclohexanediamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrate

Product 1

HCID 68910309(+/-)-trans-N1-(tert-Butoxycarbonyl)-N2-[(5-chloroindol-2-yl)carbonyl]-1,2-cyclohexanediamineYield 95%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

5-Chloroindole-2-carboxylic acid (2.88 g), 1-hydroxybenzotriazole monohydrate (2.08 g) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (2.95 g) were added to a solution of (±)-trans-N-tert-butoxycarbonyl-1,2-cyclohexanediamine (3.00 g) in N,N-dimethylformamide (10 ml) at room temperature. After stirring for 3 days, the reaction mixture was concentrated under reduced pressure, and dichloromethane (30 ml), a saturated aqueous solution (150 ml) of sodium hydrogencarbonate and water (150 ml). were added to the residue. After collecting colorless precipitate formed was collected by filtration and dried to obtain the title compound (5.21 g) as a colorless solid.

Workup

  1. concentrationthe reaction mixture was concentrated under reduced pressure, and dichloromethane (30 ml)
  2. additionwere added to the residue
  3. customAfter collecting colorless precipitate
  4. customformed
  5. filtrationwas collected by filtration
  6. customdried

Sources & evidence

ORD record
ord-ddf755cba35c4cd58edaa823723b32e3
Source dataset
uspto-grants-2007_03
Patent number
US07192968B2

Reaction notes

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