Methane → (R)-Methyl 5-((5-((4-methylpiperazin-1-yl)methyl)-2-nitrophenyl)amino)-3-(1-(2-(trifluoromethyl)phenyl)ethoxy)thiophene-2-carboxylate

HRID 883572ノート

反応式

HRID 883572 の反応式
Br[C:2]1[CH:3]=[C:4]([CH2:11][N:12]2[CH2:17][CH2:16][N:15]([CH3:18])[CH2:14][CH2:13]2)[CH:5]=[CH:6][C:7]=1[N+:8]([O-:10])=[O:9].[NH2:19][C:20]1[S:24][C:23]([C:25]([O:27][CH3:28])=[O:26])=[C:22]([O:29][C@@H:30]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=2[C:38]([F:41])([F:40])[F:39])[CH3:31])[CH:21]=1.C([O-])([O-])=O.[Cs+].[Cs+].C>O1CCOCC1.CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.CCCCCCC>[CH3:18][N:15]1[CH2:16][CH2:17][N:12]([CH2:11][C:4]2[CH:5]=[CH:6][C:7]([N+:8]([O-:10])=[O:9])=[C:2]([NH:19][C:20]3[S:24][C:23]([C:25]([O:27][CH3:28])=[O:26])=[C:22]([O:29][C@@H:30]([C:32]4[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=4[C:38]([F:41])([F:39])[F:40])[CH3:31])[CH:21]=3)[CH:3]=2)[CH2:13][CH2:14]1

参加物

8

反応物 4

HCID 297MethaneHCID 10796Cesium carbonateHCID 25111423(R)-Methyl 5-amino-3-(1-(2-(trifluoromethyl)phenyl)ethoxy)thiophene-2-carboxylateHCID 441854911-(3-Bromo-4-nitrobenzyl)-4-methylpiperazine

生成物 1

HCID 44185548(R)-Methyl 5-((5-((4-methylpiperazin-1-yl)methyl)-2-nitrophenyl)amino)-3-(1-(2-(trifluoromethyl)phenyl)ethoxy)thiophene-2-carboxylate収率 70%

試薬・触媒・溶媒 3

HCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)触媒HCID 8900Heptane溶媒HCID 312751,4-Dioxane溶媒

反応条件

温度
55 °C

実験手順

A mixture of 1-[(3-bromo-4-nitrophenyl)methyl]-4-methylpiperazine (0.675 g, 2.15 mmol), methyl 5-amino-3-({(1R)-1-[2-(trifluoromethyl)phenyl]ethyl}oxy)-2-thiophenecarboxylate (0.794 g, 2.30 mmol), Cs2CO3 (3.50 g, 10.7 mmol), XANTPHOS (0.053 g, 0.088 mmol) and tris(benzylideneacetone)dipalladium(0) (0.039 g, 0.043 mmol) in dioxane (5.4 mL) was heated to 55° C. for 1.5 h, analysed by HPLC, then cooled to room temperature. Heptane (2.4 mL), charcoal (0.27 g) and celite (0.27 g) were added. The suspension was stirred for 30 min at room temperature, and then filtered over celite, rinsing with toluene (13.5 mL×3). The filtrate was concentrated under reduced pressure and purified by flash column chromatography (DCM:MeOH:NEt3 9:1:0.1) to give the title compound (0.867 g, 70%) as a red amorphous solid.

後処理

  1. temperatureby HPLC, then cooled to room temperature
  2. filtrationfiltered over celite
  3. washrinsing with toluene (13.5 mL×3)
  4. concentrationThe filtrate was concentrated under reduced pressure
  5. custompurified by flash column chromatography (DCM:MeOH:NEt3 9:1:0.1)

出典と根拠

ORDレコード
ord-203c886be18c4adca8ac5a160f9338af
出典データセット
uspto-grants-2012_08
特許番号
US08236954B2

反応ノート

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