Ammonium Hydroxide → Cdc-801

HRID 2348

反応式

HRID 2348 の反応式
[C:1]1(=[O:30])[N:5]([CH:6]([C:11]2[CH:16]=[CH:15][C:14]([O:17][CH3:18])=[C:13]([O:19][CH:20]3[CH2:24][CH2:23][CH2:22][CH2:21]3)[CH:12]=2)[CH2:7][C:8](O)=[O:9])[C:4](=[O:25])[C:3]2=[CH:26][CH:27]=[CH:28][CH:29]=[C:2]12.C(N1C=CN=C1)([N:33]1C=CN=C1)=O.[OH-].[NH4+]>CN(C)C1C=CN=CC=1.O1CCCC1>[C:1]1(=[O:30])[N:5]([CH:6]([C:11]2[CH:16]=[CH:15][C:14]([O:17][CH3:18])=[C:13]([O:19][CH:20]3[CH2:24][CH2:23][CH2:22][CH2:21]3)[CH:12]=2)[CH2:7][C:8]([NH2:33])=[O:9])[C:4](=[O:25])[C:3]2=[CH:26][CH:27]=[CH:28][CH:29]=[C:2]12

参加物

6

反応物 3

HCID 14923Ammonium HydroxideHCID 682631,1'-CarbonyldiimidazoleHCID 98016133-(3-Cyclopentyloxy-4-methoxyphenyl)-3-phthalimidopropanoic acid

生成物 1

HCID 9844338Cdc-801収率 62.2%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒HCID 8028Tetrahydrofuran溶媒

反応条件

温度
25 °C

実験手順

A mixture of 3-phthalimido-3-(3-cyclopentyloxy-4-methoxyphenyl)propionic acid (2.05 g, 5.00 mmol), 1,1'-carbonyldiimidazole (0.91 g, 5.5 mmol) and 4-dimethylaminopyridine (trace) in tetrahydrofuran (20 mL) was stirred for 1.5 hours under nitrogen at approximately 25° C. To the solution was added ammonium hydroxide (1.07 mL, 16.0 mmol, 28-30%) and stirring was continued for 1.5 hours. A small amount of solid forms during this time. The mixture was concentrated to half its volume and a white solid precipitated. The mixture was filtered, washed with a small amount of tetrahydrofuran, air dried, and dried in vacuo (60° C.,<1 mm) to afford 1.27 g of the product. The product was further purified by flash column chromatography (silica gel, 5% methanol/methylene chloride) and the resulting white solid was dried in vacuo (60° C., <1 mm) to afford 1 g (49%) of the product: mp 165°-166° C.; 1H NMR (CDCl3) δ 7.85-7.61 (m, 4H), 7.16-7.04 (m, 2H), 6.85-6.75 (m, 1H), 5.80 (dd, J=5.8, 10.4 Hz, 1H), 5.66 (br s, 1H), 5.54 (br s, 1H), 4.82-4.70 (m, 1H), 3.80 (s, 3H), 3.71 (dd, J=10.4, 15 Hz, 1H), 3.06 (dd, J=5.8, 15 Hz, 1H), 2.06-1.51 (m, 8H); 13C NMR (CDCl3) δ 171.8, 168.3, 149.8, 147.7, 133.9, 131.8, 131.3, 123.3, 119.9, 114.6, 111.8, 80.4, 56.0, 51.6, 37.9, 32.7, 24.1; Anal. Calcd for C23 H24N2O5. Theoretical: C, 67.63; H, 5.92; N, 6.86. Found: C, 67.25; H, 5.76; N, 6.68.

後処理

  1. stirringstirring
  2. waitwas continued for 1.5 hours
  3. concentrationThe mixture was concentrated to half its volume
  4. customa white solid precipitated
  5. filtrationThe mixture was filtered
  6. washwashed with a small amount of tetrahydrofuran, air
  7. customdried
  8. customdried in vacuo (60° C.,<1 mm)

出典と根拠

ORDレコード
ord-f310c91312a24ed185ed64c535694b9b
出典データセット
uspto-grants-1998_03
特許番号
US05728844

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