Acetic Acid → (S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-2-(2-((R)-3,4-dimethylpiperazin-1-yl)pyrimidin-4-yl)-5-methylbenzo[d]thiazol-6-yl)acetate

HRID 879610ノート

反応式

HRID 879610 の反応式
[C:1]([O:5][C@@H:6]([C:11]1[C:32]([CH3:33])=[CH:31][C:14]2[N:15]=[C:16]([C:18]3[CH:23]=[CH:22][N:21]=[C:20]([N:24]4[CH2:29][CH2:28][NH:27][C@H:26]([CH3:30])[CH2:25]4)[N:19]=3)[S:17][C:13]=2[C:12]=1[C:34]1[CH:39]=[CH:38][C:37]([Cl:40])=[CH:36][CH:35]=1)[C:7]([O:9][CH3:10])=[O:8])([CH3:4])([CH3:3])[CH3:2].[C:41](O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(O)(=O)C.C=O>CN(C=O)C>[C:1]([O:5][C@@H:6]([C:11]1[C:32]([CH3:33])=[CH:31][C:14]2[N:15]=[C:16]([C:18]3[CH:23]=[CH:22][N:21]=[C:20]([N:24]4[CH2:29][CH2:28][N:27]([CH3:41])[C@H:26]([CH3:30])[CH2:25]4)[N:19]=3)[S:17][C:13]=2[C:12]=1[C:34]1[CH:35]=[CH:36][C:37]([Cl:40])=[CH:38][CH:39]=1)[C:7]([O:9][CH3:10])=[O:8])([CH3:2])([CH3:3])[CH3:4]

参加物

6

反応物 4

HCID 176Acetic AcidHCID 712FormaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 86700423(S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-5-methyl-2-(2-((R)-3-methylpiperazin-1-yl)pyrimidin-4-yl)benzo[d]thiazol-6-yl)acetate

生成物 1

HCID 86700424(S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-2-(2-((R)-3,4-dimethylpiperazin-1-yl)pyrimidin-4-yl)-5-methylbenzo[d]thiazol-6-yl)acetate

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
60 °C

実験手順

To crude (S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-5-methyl-2-(2-((R)-3-methylpiperazin-1-yl)pyrimidin-4-yl)benzo[d]thiazol-6-yl)acetate (45.8 mg, 0.079 mmol) and sodium triacetoxyborohydride (83.7 mg, 0.395 mmol) in DMF (1 mL) was added acetic acid (23.7 mg, 22.6 μL, 0.395 mmol). The reaction mixture was heated to 60° C., then 37% w/w aq. formaldehyde (9.48 mg, 23.5 μL, 0.316 mmol) was added dropwise over 1 min. The reaction mixture was heated at 60° C. for 2 h. Upon completion of the reaction, the reaction mixture was filtered through Celite (ethyl acetate eluent) and concentrated. Purification by flash column chromatography on silica gel using 100:5:1 EtOAc/MeOH/NH4OH (0 to 100%) in EtOAc provided the product. LCMS-ESI+ calc'd for C31H37ClN5O3S (M+H+): 594.2; Found: 593.7 (M+H+).

後処理

  1. temperatureThe reaction mixture was heated at 60° C. for 2 h
  2. customUpon completion of the reaction
  3. filtrationthe reaction mixture was filtered through Celite (ethyl acetate eluent)
  4. concentrationconcentrated
  5. customPurification by flash column chromatography on silica gel using 100:5:1 EtOAc/MeOH/NH4OH (0 to 100%) in EtOAc
  6. customprovided the product

出典と根拠

ORDレコード
ord-859513dc684e4c57aaffd6e1f33b408d
出典データセット
uspto-grants-2015_03
特許番号
US08987250B2

反応ノート

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