Cesium carbonate → HCID 59238963、化合物

HRID 2060963ノート

反応式

HRID 2060963 の反応式
C([N:8]1[C:20]2[C:19]([OH:21])=[C:18]3[N:22](C(OC(C)(C)C)=O)[C:23]4[CH:24]=[CH:25][C:26]([F:29])=[CH:27][C:28]=4[C:17]3=[CH:16][C:15]=2[C:14]2[C:9]1=[CH:10][CH:11]=[C:12]([F:37])[CH:13]=2)(OC(C)(C)C)=O.Br[CH2:39][CH2:40][CH2:41][NH:42]C(=O)OC(C)(C)C.C([O-])([O-])=O.[Cs+].[Cs+]>CC#N>[F:37][C:12]1[CH:13]=[C:14]2[C:9](=[CH:10][CH:11]=1)[NH:8][C:20]1[C:19]([O:21][CH2:39][CH2:40][CH2:41][NH2:42])=[C:18]3[NH:22][C:23]4[CH:24]=[CH:25][C:26]([F:29])=[CH:27][C:28]=4[C:17]3=[CH:16][C:15]2=1

参加物

5

反応物 3

HCID 10796Cesium carbonateHCID 4460490tert-butyl N-(3-bromopropyl)carbamateHCID 67212243HCID 67212243、化合物

生成物 1

HCID 59238963HCID 59238963、化合物収率 82%

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

反応条件

温度
100 °C

実験手順

A mixture of 5,7-diBOC-2,10-difluoro-6-hydroxyindolo[2,3-b]carbazole (4.03 g, 8.0 mmol), tert-butyl 3-bromopropylcarbamate (2.20 g, 9.2 mmol), and Cs2CO3 (10.0 g, 31 mmol), and anhydrous MeCN (120 mL) was heated at 100° C. under Ar until the starting material disappeared (˜2 h). After cooled to RT, the inorganic salt was removed by filtration, washed with dichloromethane, and the combined filtrate was concentrated. The resulting residue 3-(2,10-difluoro-5,7-diBOC-indolo[2,3-b]carbazol-6-yloxy)propan-1-amine was dissolved in CH2Cl2 (100 mL). TFA (10 mL) was added and the solution was stirred at RT overnight. After evaporation, the residue was subjected to chromatography on silica gel, eluting with ethyl acetate/hexane/MeOH (10% cNH3.H2O) (50/50/10-100/0/10), giving 2.35 g (82%) of 3-(2,10-difluoro-5,7-dihydroindolo[2,3-b]carbazol-6-yloxy)propan-1-amine. 1H NMR (400 MHz, DMSO-d6) δ 11.8 (br s, 2H), 8.56 (s, 1H), 7.89 (dd, J=9.4, 2.6 Hz, 2H), 7.44 (dd, J=8.6, 4.6 Hz, 2H), 7.17 (td, J=9.2, 2.4 Hz, 2H), 4.36 (t, J=6.2 Hz, 2H), 2.97 (t, J=6.2 Hz, 2H), 1.98 (pentalet, J=6.2 Hz, 2H).

後処理

  1. custom(˜2 h)
  2. temperatureAfter cooled to RT
  3. customthe inorganic salt was removed by filtration
  4. washwashed with dichloromethane
  5. concentrationthe combined filtrate was concentrated
  6. dissolutionThe resulting residue 3-(2,10-difluoro-5,7-diBOC-indolo[2,3-b]carbazol-6-yloxy)propan-1-amine was dissolved in CH2Cl2 (100 mL)
  7. additionTFA (10 mL) was added
  8. customAfter evaporation
  9. washeluting with ethyl acetate/hexane/MeOH (10% cNH3.H2O) (50/50/10-100/0/10)

出典と根拠

ORDレコード
ord-069faf33cab945a3980aa1324bdab083
出典データセット
uspto-grants-2012_10
特許番号
US08278341B2

反応ノート

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