Sodium borohydride → 6-(Hydroxymethyl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydro pyrazolo[1,5-a]pyrimidine-3-carbonitrile

HRID 64362ノート

反応式

HRID 64362 の反応式
[C:1]([C:3]1[C:4]([C:17]2[CH:22]=[CH:21][C:20]([O:23][C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=3)=[CH:19][CH:18]=2)=[N:5][N:6]2[CH:11]=[C:10]([C:12](OCC)=[O:13])[CH:9]=[N:8][C:7]=12)#[N:2].[BH4-].[Na+]>C(Cl)Cl.CO>[OH:13][CH2:12][CH:10]1[CH2:11][N:6]2[N:5]=[C:4]([C:17]3[CH:22]=[CH:21][C:20]([O:23][C:24]4[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=4)=[CH:19][CH:18]=3)[C:3]([C:1]#[N:2])=[C:7]2[NH:8][CH2:9]1

参加物

5

反応物 2

HCID 4311764Sodium borohydrideHCID 117668240Ethyl 3-cyano-2-(4-phenoxyphenyl)pyrazolo[1,5-a]pyrimidine-6-carboxylate

生成物 1

HCID 1369281006-(Hydroxymethyl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydro pyrazolo[1,5-a]pyrimidine-3-carbonitrile収率 111%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 6344Dichloromethane溶媒

実験手順

To a solution of ethyl 3-cyano-2-(4-phenoxyphenyl)pyrazolo[1,5-a]pyrimidine-6-carboxylate (250 mg, 0.65 mmol) in DCM (5 mL) and CH3OH (5 mL) was added NaBH4 (250 mg, 6.5 mmol). After stirring at RT for 16 hr, the mixture was partitioned between DCM/CH3OH (100 mL/5 mL) and brine (100 mL). The organic layer was separated from aqueous layers, dried over Na2SO4 and concentrated to afford 250 mg (100%) of 6-(hydroxymethyl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydro pyrazolo[1,5-a]pyrimidine-3-carbonitrile. MS (ESI) m/e [M+1]+346.9.

後処理

  1. customthe mixture was partitioned between DCM/CH3OH (100 mL/5 mL) and brine (100 mL)
  2. customThe organic layer was separated from aqueous layers
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-a0f450ec046d4e26a96c4c72cf8f6b19
出典データセット
uspto-grants-2016_09
特許番号
US09447106B2

反応ノート

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