1-Propanol → 5-((1S,3R)-3-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclopentyl-amino)pyrazine-2-carbonitrile

HRID 1854440Notes

Reaction equation

HRID 1854440 reaction equation
Cl.[S:2]([N:12]1[C:16]2[N:17]=[CH:18][C:19]3[N:20]([C:21]([C@@H:24]4[CH2:28][CH2:27][C@H:26]([NH2:29])[CH2:25]4)=[N:22][N:23]=3)[C:15]=2[CH:14]=[CH:13]1)([C:5]1[CH:11]=[CH:10][C:8]([CH3:9])=[CH:7][CH:6]=1)(=[O:4])=[O:3].C(O)CC.Cl[C:35]1[N:36]=[CH:37][C:38]([C:41]#[N:42])=[N:39][CH:40]=1.CCN(C(C)C)C(C)C>C(Cl)Cl>[S:2]([N:12]1[C:16]2[N:17]=[CH:18][C:19]3[N:20]([C:21]([C@@H:24]4[CH2:28][CH2:27][C@H:26]([NH:29][C:35]5[N:36]=[CH:37][C:38]([C:41]#[N:42])=[N:39][CH:40]=5)[CH2:25]4)=[N:22][N:23]=3)[C:15]=2[CH:14]=[CH:13]1)([C:5]1[CH:11]=[CH:10][C:8]([CH3:9])=[CH:7][CH:6]=1)(=[O:4])=[O:3]

Participants

6

Reactant 4

HCID 10311-PropanolHCID 81531DiisopropylethylamineHCID 122957285-Chloropyrazine-2-carbonitrileHCID 69014326(1S,3R)-3-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclopentanamine hydrochloride

Product 1

HCID 580101665-((1S,3R)-3-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclopentyl-amino)pyrazine-2-carbonitrileYield 81.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Conditions

Temperature
150 °C

Procedure

To a microwave vessel was added (1S,3R)-3-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclopentanamine hydrochloride (0.500 g, 1.06 mmol), n-propanol (10 mL), 5-chloropyrazine-2-carbonitrile (0.223 g, 1.60 mmol) and DIEA (0.837 mL, 4.79 mmol). The resulting mixture was heated in a microwave at about 150° C. for about 30 min. DCM (100 mL) was added and a solution was formed. The organic solution was washed with water and brine (50 mL each), dried over anhydrous MgSO4, filtered, and concentrated under reduced pressure to give a brown solid. The residue was taken up in DCM (30 mL) and adsorbed onto silica gel (5 g). The material was purified by silica gel chromatography (80 g cartridge) eluting with neat EtOAc to give 5-((1S,3R)-3-(6-tosyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyrazin-1-yl)cyclopentylamino)pyrazine-2-carbonitrile (0.43 g, 80%) as a light yellow solid: LC/MS (Table 2, Method d) Rt=1.40 min; MS m/z: 500 (M+H)+.

Workup

  1. customa solution was formed
  2. washThe organic solution was washed with water and brine (50 mL each)
  3. dry with materialdried over anhydrous MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customto give a brown solid
  7. customThe material was purified by silica gel chromatography (80 g cartridge)
  8. washeluting with neat EtOAc

Sources & evidence

ORD record
ord-d45f0ff6d6744ed8a068b4eb26a40fa6
Source dataset
uspto-grants-2015_02
Patent number
US08962629B2

Reaction notes

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