Diisopropylethylamine → [(3R,4S)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester

HRID 587340Notes

Reaction equation

HRID 587340 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][C:9](=[O:33])[N:10]([C@@H:12]2[C@@H:16]([C:17]3[CH:22]=[CH:21][C:20]([Cl:23])=[C:19]([Cl:24])[CH:18]=3)[CH2:15][N:14]([C:25]([CH:27]3[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]3)=[O:26])[CH2:13]2)[CH3:11])=[CH:4][CH:3]=1.Cl[C:35]1[CH:42]=[CH:41][C:38]([C:39]#[N:40])=[CH:37][N:36]=1.C(N(CC)C(C)C)(C)C>CN1CCCC1=O.C(OCC)(=O)C>[F:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][C:9](=[O:33])[N:10]([C@@H:12]2[C@@H:16]([C:17]3[CH:22]=[CH:21][C:20]([Cl:23])=[C:19]([Cl:24])[CH:18]=3)[CH2:15][N:14]([C:25]([CH:27]3[CH2:32][CH2:31][N:30]([C:35]4[CH:42]=[CH:41][C:38]([C:39]#[N:40])=[CH:37][N:36]=4)[CH2:29][CH2:28]3)=[O:26])[CH2:13]2)[CH3:11])=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 81531DiisopropylethylamineHCID 51520946-Chloro-3-pyridinecarbonitrileHCID 58303080[(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester

Product 1

HCID 58303168[(3R,4S)-1-(5'-Cyano-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-4-carbonyl)-4-(3,4-dichloro-phenyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl esterYield 87.2%

Reagents, catalysts & solvents 2

HCID 8857Ethyl AcetateSolventHCID 13387N-methyl-2-pyrrolidoneSolvent

Procedure

A solution of [(3R,4S)-4-(3,4-Dichloro-phenyl)-1-(piperidine-4-carbonyl)-pyrrolidin-3-yl]-methyl-carbamic acid 4-fluoro-phenyl ester (50 mg, 0.10 mmol), 6-chloronicotinonitrile (21 mg, 0.15 mmol) in N-methylpyrrolidinone (0.5 mL) was treated with N,N-diisopropyl ethyl amine (52 μl, 0.30 mmol). The solution was stirred for 6 h at ambient temperature before it was diluted with ethyl acetate (15 mL) and washed with an aqueous solution of sodium carbonate (1 M, 15 mL). The organic layer was separated and washed with brine (15 mL) and the aqueous layers were extracted with ethyl acetate (20 mL). The combined organic layers were dried over sodium sulfate and concentrated. Purification by chromatography (SiO2, heptane:ethyl acetate:methanol=80:20:0 to 0:90:10) afforded the title compound (52 mg, 86%) as an off-white foam. MS m/e: 596.2 [M]+.

Workup

  1. washwashed with an aqueous solution of sodium carbonate (1 M, 15 mL)
  2. customThe organic layer was separated
  3. washwashed with brine (15 mL)
  4. extractionthe aqueous layers were extracted with ethyl acetate (20 mL)
  5. dry with materialThe combined organic layers were dried over sodium sulfate
  6. concentrationconcentrated
  7. customPurification by chromatography (SiO2, heptane:ethyl acetate:methanol=80:20:0 to 0:90:10)

Sources & evidence

ORD record
ord-bbc8241d97174dc599022ec22c970392
Source dataset
uspto-grants-2016_01
Patent number
US09226916B2

Reaction notes

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