Sodium Carbonate → 4-(2,5-Difluorobenzyl)-6-[6-(4-methylpiperazin-1-yl)pyridin-3-yl]-1,2,3,4-tetrahydro-[1,8]naphthyridine

HRID 659469ノート

反応式

HRID 659469 の反応式
C([O-])([O-])=O.[Na+].[Na+].Br[C:8]1[CH:9]=[C:10]2[C:15](=[N:16][CH:17]=1)[NH:14][CH2:13][CH2:12][CH:11]2[CH2:18][C:19]1[CH:24]=[C:23]([F:25])[CH:22]=[CH:21][C:20]=1[F:26].[CH3:27][N:28]1[CH2:33][CH2:32][N:31]([C:34]2[CH:39]=[CH:38][C:37](B3OC(C)(C)C(C)(C)O3)=[CH:36][N:35]=2)[CH2:30][CH2:29]1>C1(C)C=CC=CC=1.C(O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:26][C:20]1[CH:21]=[CH:22][C:23]([F:25])=[CH:24][C:19]=1[CH2:18][CH:11]1[C:10]2[C:15](=[N:16][CH:17]=[C:8]([C:37]3[CH:36]=[N:35][C:34]([N:31]4[CH2:30][CH2:29][N:28]([CH3:27])[CH2:33][CH2:32]4)=[CH:39][CH:38]=3)[CH:9]=2)[NH:14][CH2:13][CH2:12]1

参加物

6

反応物 3

HCID 10340Sodium CarbonateHCID 27696181-Methyl-4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)piperazineHCID 578858006-Bromo-4-(2,5-difluorobenzyl)-1,2,3,4-tetrahydro-[1,8]naphthyridine

生成物 1

HCID 469067154-(2,5-Difluorobenzyl)-6-[6-(4-methylpiperazin-1-yl)pyridin-3-yl]-1,2,3,4-tetrahydro-[1,8]naphthyridine収率 26%

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 21863594Toluene ethanol溶媒

実験手順

Na2CO3 (2N, 53 μL) (4.0 eq) was added to a mixture of 6-bromo-4-(2,5-difluorobenzyl)-1,2,3,4-tetrahydro-[1,8]naphthyridine (9.0 mg) (1 eq), 1-methyl-4-[5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)pyridin-2-yl]piperazine (11.3 mg) (1.4 eq), and Pd(PPh3)4 (3.0 mg, 0.1 eq) in toluene/ethanol (4:1, v/v, 2 mL). The reaction was heated at 90° C. for six (6) hours. The reaction mixture was then concentrated under reduced pressure and the residue was taken up in CH2Cl2 (15 mL) and washed with water (15 mL). The organic phase was dried over Na2SO4, filtered, concentrated under reduced pressure, and purified by silica gel chromatography using a gradient of 0-20% methanol/CH2Cl2 as the eluting solvent to give the title compound as a yellow foam (26% yield). LCMS: m/z=436 (M+H+), 1H-NMR (CDCl3, 400 MHz) δ 1.7-2.0 (m, 2H), 2.37 (s, 3H), 2.55-2.60 (m, 4H), 2.81 (dd, J=9.1 and 13.3 Hz, 1H), 2.98 (dd, J=6.4 and 13.3H, 1H), 3.08-3.18 (m, 1H), 3.40-3.50 (m, 1H), 3.53-3.70 (m, 5H), 5.18 (bs, 1H), 6.68 (d, J=8.8 Hz, 1H), 6.81-6.87 (m, 1H), 6.89-6.96 (m, 1H), 6.98-7.06 (m, 1H), 7.16 (d, J=1 Hz, 1H), 7.50 (dd, J=2.5 and 8.8 Hz, 1H), 8.05 (d, J=1 Hz, 1H), 8.24 (d, J=2.5 Hz, 1H).

後処理

  1. concentrationThe reaction mixture was then concentrated under reduced pressure
  2. washwashed with water (15 mL)
  3. dry with materialThe organic phase was dried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. custompurified by silica gel chromatography

出典と根拠

ORDレコード
ord-3e174a61732d450c884658e450c1a97c
出典データセット
uspto-grants-2011_12
特許番号
US08080561B2

反応ノート

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