Ammonia → (3R)-N-methyl-1-[1-(quinolin-6-ylmethyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-6-yl]pyrrolidin-3-amine

HRID 16006

Reaction equation

HRID 16006 reaction equation
[N:1]1[C:10]2[C:5](=[CH:6][C:7]([CH2:11][N:12]3[C:16]4=[N:17][C:18]([N:21]5[CH2:25][CH2:24][CH:23](C(O)=O)[CH2:22]5)=[CH:19][N:20]=[C:15]4[N:14]=[N:13]3)=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.O.O[N:31]1[C:35]2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC.CN1CCOCC1.N>CN(C=O)C.C(OC)(C)(C)C>[CH3:35][NH:31][C@@H:23]1[CH2:24][CH2:25][N:21]([C:18]2[N:17]=[C:16]3[N:12]([CH2:11][C:7]4[CH:6]=[C:5]5[C:10](=[CH:9][CH:8]=4)[N:1]=[CH:2][CH:3]=[CH:4]5)[N:13]=[N:14][C:15]3=[N:20][CH:19]=2)[CH2:22]1

Participants

8

Reactant 5

HCID 222Ammonia2×HCID 79724-Methylmorpholine2×HCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride2×HCID 27960291-Hydroxybenzotriazole hydrate2×HCID 593418421-[1-(quinolin-6-ylmethyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-6-yl]pyrrolidine-3-carboxylic acid

Product 1

HCID 59341855(3R)-N-methyl-1-[1-(quinolin-6-ylmethyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-6-yl]pyrrolidin-3-amine

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 15413tert-Butyl methyl etherSolvent

Procedure

To a solution of 1-[1-(quinolin-6-ylmethyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-6-yl]pyrrolidine-3-carboxylic acid (143 mg, 0.328 mmol) and 1-hydroxybenzotriazole hydrate (93 mg, 0.69 mmol) in DMF (4.0 mL) was added N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (132 mg, 0.690 mmol) followed by N-methyl morpholine (159 μL, 1.31 mmol). The resulting solution was stirred for 4 hours at room temperature then ammonia (7 N in methanol, 234 μL, 1.64 mmol) was added and the reaction was stirred overnight. To the reaction was added more 1-hydroxybenzotriazole hydrate, N-(3-Dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride, and N-methyl morpholine and the solution was stirred for 1 hour at room temperature then ammonia (0.5 N in dioxane) was added. After 6 hours, the solution was diluted with methyl tert-butyl ether (100 mL) and the organic solution was washed with saturated sodium bicarbonate (2×20 mL) and brine (20 mL). The combined aqueous layers were combined and lyophilized. The resulting solids were slurried in 1:1 methanol:chloroform, filtered and the filtrate was concentrated. The crude product was purified by flash chromatography using a Horizon purification system on a 40S column eluting with chloroform/7 N methanolic ammonia (0.1-6%) to afford the title compound as the racemic mixture (86 mg, 70%). The mixture was separated by SCF chromatography to afford pure the enantiomers in 100% ee (peak 1, 37%; peak 2, 42%).

Workup

  1. stirringthe reaction was stirred overnight
  2. stirringthe solution was stirred for 1 hour at room temperature
  3. waitAfter 6 hours
  4. washthe organic solution was washed with saturated sodium bicarbonate (2×20 mL) and brine (20 mL)
  5. filtrationchloroform, filtered
  6. concentrationthe filtrate was concentrated
  7. customThe crude product was purified by flash chromatography
  8. customa Horizon purification system on a 40S column
  9. washeluting with chloroform/7 N methanolic ammonia (0.1-6%)

Sources & evidence

ORD record
ord-11e4dc7039984f67b2a18bd3fff4defc
Source dataset
uspto-grants-2010_06
Patent number
US07732604B2

Linked notes

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