Water → 6-ethoxy-N-[2-(3-methyl-2,6-dioxo-piperidin-3-yl)-1,3-dioxo-2,3-dihydro-1H-isoindol-5-ylmethyl]-nicotinamide

HRID 63441ノート

反応式

HRID 63441 の反応式
[CH2:1]([O:3][C:4]1[CH:12]=[CH:11][C:7]([C:8]([OH:10])=O)=[CH:6][N:5]=1)[CH3:2].C1N=CN(C(N2C=NC=C2)=O)C=1.Cl.[NH2:26][CH2:27][C:28]1[CH:29]=[C:30]2[C:34](=[CH:35][CH:36]=1)[C:33](=[O:37])[N:32]([C:38]1([CH3:46])[CH2:43][CH2:42][C:41](=[O:44])[NH:40][C:39]1=[O:45])[C:31]2=[O:47].O>CN(C)C=O>[CH2:1]([O:3][C:4]1[CH:12]=[CH:11][C:7]([C:8]([NH:26][CH2:27][C:28]2[CH:29]=[C:30]3[C:34](=[CH:35][CH:36]=2)[C:33](=[O:37])[N:32]([C:38]2([CH3:46])[CH2:43][CH2:42][C:41](=[O:44])[NH:40][C:39]2=[O:45])[C:31]3=[O:47])=[O:10])=[CH:6][N:5]=1)[CH3:2]

参加物

6

反応物 4

HCID 962WaterHCID 682631,1'-CarbonyldiimidazoleHCID 64858176-Ethoxypyridine-3-carboxylic acidHCID 670232045-Aminomethyl-2-(3-methyl-2,6-dioxo-piperidin-3-yl)isoindole-1,3-dione hydrochloride

生成物 1

HCID 670232516-ethoxy-N-[2-(3-methyl-2,6-dioxo-piperidin-3-yl)-1,3-dioxo-2,3-dihydro-1H-isoindol-5-ylmethyl]-nicotinamide収率 86%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
40 °C

実験手順

A stirred mixture of 6-ethoxy-nicotinic acid (0.33 g, 2.00 mmol) and CDI (0.36 g, 2.20 mmol) in N,N-dimethylformamide (20 mL) was heated to 40° C. under nitrogen. After 1 h, 5-aminomethyl-2-(3-methyl-2,6-dioxo-piperidin-3-yl)-isoindole-1,3-dione hydrochloride (0.68 g, 2.00 mmol) was added and the mixture was heated at 40° C. for 1.5 h. The mixture was cooled to rt and water (40 mL) was added. The solvent was removed in vacuo and the crude product was purified by column chromatography (80/20, EtOAc hexanes). The product fractions were combined, concentrated and the residue was triturated in Et2O. The product was isolated by filtration and dried in vacuo to give 6-ethoxy-N-[2-(3-methyl-2,6-dioxo-piperidin-3-yl)-1,3-dioxo-2,3-dihydro-1H-isoindol-5-ylmethyl]-nicotinamide as a white solid (0.77 g, 86% yield): HPLC: Waters Symmetry C18, 5 μm, 3.9×150 mm, 1 mL/min, 240 nm, 40/60 CH3CN/0.1% H3PO4, 3.56 min (99.14%); mp: 174-176° C.; 1H NMR (DMSO-d6) δ 1.33 (t, J=6.9 Hz, 3H), 1.89 (s, 3H), 2.02-2.08 (m, 1H), 2.54-2.73 (m, 3H), 4.34 (dd, J=7.2, 14.1 Hz, 2H), 4.62 (d, J=6.0 Hz, 2H), 6.88 (d, J=8.7 Hz, 1H), 7.77-7.83 (m, 3H), 8.14 (dd, J=2.4, 8.7 Hz, 1H), 8.70 (d, J=2.1 Hz, 1H), 9.20 (t, J=6.0 Hz, 1H), 11.01 (s, 1H); 13C NMR (DMSO-d6) δ 14.40, 21.00, 28.60, 29.10, 42.50, 58.70, 61.80, 110.30, 121.60, 123.00, 123.20, 129.60, 131.40, 133.40, 138.10, 147.10, 147.30, 164.70, 165.00, 167.70, 167.90, 172.10, 172.20; LCMS: MH=451; Anal Calcd for C23H22N4O6+0.3H2O: C, 60.60; H, 5.00; N, 12.29. Found: C, 60.24; H, 4.86; N, 12.15.

後処理

  1. temperaturethe mixture was heated at 40° C. for 1.5 h
  2. temperatureThe mixture was cooled to rt
  3. customThe solvent was removed in vacuo
  4. customthe crude product was purified by column chromatography (80/20, EtOAc hexanes)
  5. concentrationconcentrated
  6. customthe residue was triturated in Et2O
  7. customThe product was isolated by filtration
  8. customdried in vacuo

出典と根拠

ORDレコード
ord-beeac270b0654191bb3be9673013ee90
出典データセット
uspto-grants-2016_09
特許番号
US09447070B2

反応ノート

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