1,1'-Carbonyldiimidazole → (R)-N-(5-(2-(3-chloro-5-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxyazetidine-1-carboxamide

HRID 63995Notes

Reaction equation

HRID 63995 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C@H:9]2[CH2:13][CH2:12][CH2:11][N:10]2[C:14]2[CH:19]=[CH:18][N:17]3[N:20]=[CH:21][C:22]([NH2:23])=[C:16]3[N:15]=2)[CH:5]=[C:6]([F:8])[CH:7]=1.C1N=CN([C:29]([N:31]2[CH:35]=N[CH:33]=[CH:32]2)=[O:30])C=1.Cl.N1CC([OH:41])C1.CCN(C(C)C)C(C)C>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[C:4]([C@H:9]2[CH2:13][CH2:12][CH2:11][N:10]2[C:14]2[CH:19]=[CH:18][N:17]3[N:20]=[CH:21][C:22]([NH:23][C:29]([N:31]4[CH2:32][CH:33]([OH:41])[CH2:35]4)=[O:30])=[C:16]3[N:15]=2)[CH:5]=[C:6]([F:8])[CH:7]=1

Participants

6

Reactant 4

HCID 682631,1'-CarbonyldiimidazoleHCID 81531DiisopropylethylamineHCID 27592903-Hydroxyazetidine hydrochlorideHCID 67330213(R)-5-(2-(3-chloro-5-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-amine

Product 1

HCID 58386302(R)-N-(5-(2-(3-chloro-5-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxyazetidine-1-carboxamideYield 74%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a DCM (0.7 mL) solution of (R)-5-(2-(3-chloro-5-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-amine (20 mg, 0.06 mmol, prepared as described in the following paragraph), was added CDI (20 mg, 0.12 mmol) at ambient temperature in one portion. After stirring two hours, azetidin-3-ol hydrochloride (20 mg, 0.18 mmol) was added in one portion, followed by addition of DIEA (0.032 mL, 0.18 mmol). The reaction was stirred overnight before it was concentrated and directly purified by reverse-phase column chromatography, eluting with 0 to 60% acetonitrile/water to yield the final product as a solid (29 mg, 74% yield). MS (apci) m/z=431.2 (M+H).

Workup

  1. stirringThe reaction was stirred overnight before it
  2. concentrationwas concentrated
  3. customdirectly purified by reverse-phase column chromatography
  4. washeluting with 0 to 60% acetonitrile/water

Sources & evidence

ORD record
ord-a7edb95cb15043609256dc7662bfbb80
Source dataset
uspto-grants-2016_09
Patent number
US09447104B2

Reaction notes

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