Potassium Carbonate → methyl (4-{3-cyano-5-[1-(tetrahydro-2H-pyran-2-yl)-1H-1,2,4-triazol-3-yl]-4-vinyl-2-thienyl}pyridin-2-yl)carbamate

HRID 2401825ノート

反応式

HRID 2401825 の反応式
Br[C:2]1[C:3]([C:29]#[N:30])=[C:4]([C:18]2[CH:23]=[CH:22][N:21]=[C:20]([NH:24][C:25](=[O:28])[O:26][CH3:27])[CH:19]=2)[S:5][C:6]=1[C:7]1[N:11]=[CH:10][N:9]([CH:12]2[CH2:17][CH2:16][CH2:15][CH2:14][O:13]2)[N:8]=1.[CH:31]([B-](F)(F)F)=[CH2:32].[K+].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O.O.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>[C:29]([C:3]1[C:2]([CH:31]=[CH2:32])=[C:6]([C:7]2[N:11]=[CH:10][N:9]([CH:12]3[CH2:17][CH2:16][CH2:15][CH2:14][O:13]3)[N:8]=2)[S:5][C:4]=1[C:18]1[CH:23]=[CH:22][N:21]=[C:20]([NH:24][C:25](=[O:28])[O:26][CH3:27])[CH:19]=1)#[N:30]

参加物

7

反応物 3

HCID 11430Potassium CarbonateHCID 23679353Potassium vinyltrifluoroborateHCID 68095977Methyl (4-{4-bromo-3-cyano-5-[1-(tetrahydro-2H-pyran-2-yl)-1H-1,2,4-triazol-3-yl]-2-thienyl}pyridin-2-yl)carbamate

生成物 1

HCID 68100370methyl (4-{3-cyano-5-[1-(tetrahydro-2H-pyran-2-yl)-1H-1,2,4-triazol-3-yl]-4-vinyl-2-thienyl}pyridin-2-yl)carbamate

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

反応条件

温度
140 °C

実験手順

A mixture of methyl (4-{4-bromo-3-cyano-5-[1-(tetrahydro-2H-pyran-2-yl)-1H-1,2,4-triazol-3-yl]-2-thienyl}pyridin-2-yl)carbamate (1.14 g, 2.33 mmol), potassium vinyltrifluoroborate (0.624 g, 4.66 mmol), tetrakis(triphenylphosphine)platinum (0) (0.145 g, 0.116 mmol) and potassium carbonate (0.967 g, 7.00 mmol) in N,N-dimethylformamide (14.0 mL) and water (5.0 mL) in a microwave vial was heated under nitrogen atmosphere at 140° C. in a microwave for 15 min. The mixture was cooled to room temperature, quenched with water, extracted with DCM, washed with water then brine, dried over Na2SO4, filtered and rotavaped to give a crude product. Purification on a silica gel column using MeOH/DCM (0/100 to 5/95) afforded the desired product (1.16 g, with PPh3 and O═PPh3 contaminated) with Rf on TLC (MeOH/DCM 5/95) of 0.4, and de-carbamide product (0.627 g, yield 58%). LC/MS: (FA) ES+ 437. 1H NMR (400 MHz, d-chloroform) δ 8.52 (s, 1H), 8.45 (s, 1H), 8.41 (m, 1H), 8.33 (s, 1H), 7.51-7.59 (m, 1H), 7.46-7.49 (m, 1H), 6.28-6.33 (m, 1H), 5.66-5.69 (m, 1H), 5.51-5.54 (m, 1H), 4.09-4.12 (m, 1H), 3.86 (s, 3H), 3.75-3.78 (m, 1H), 2.00-2.20 (m, 3H), 1.68-1.77 (m, 3H).

後処理

  1. temperatureThe mixture was cooled to room temperature
  2. customquenched with water
  3. extractionextracted with DCM
  4. washwashed with water
  5. dry with materialbrine, dried over Na2SO4
  6. filtrationfiltered
  7. customto give a crude product
  8. customPurification on a silica gel column

出典と根拠

ORDレコード
ord-41de3af0f2ed4e0ab9bf2badc1619fc0
出典データセット
uspto-grants-2014_08
特許番号
US08796268B2

反応ノート

読み込み中…