2-Oxopropanethioamide → 5'-Bromo-4-methoxy-5''-methyldispiro[cyclohexane-1,2'-[1]-benzofuran-3',2''-imidazole]-4''(3''H)-thione

HRID 1770959ノート

反応式

HRID 1770959 の反応式
[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[O:16][C:8]3([CH2:13][CH2:12][CH:11]([O:14][CH3:15])[CH2:10][CH2:9]3)[C:7](=[NH:17])[C:6]=2[CH:18]=1.O=[C:20]([CH3:24])[C:21](=[S:23])[NH2:22]>CO>[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[O:16][C:8]3([CH2:9][CH2:10][CH:11]([O:14][CH3:15])[CH2:12][CH2:13]3)[C:7]3([NH:22][C:21](=[S:23])[C:20]([CH3:24])=[N:17]3)[C:6]=2[CH:18]=1

参加物

4

反応物 2

HCID 207652372-Oxopropanethioamide3 回HCID 679795445-Bromo-4'-methoxy-3H-spiro[benzofuran-2,1'-cyclohexan]-3-imine

生成物 1

HCID 866672755'-Bromo-4-methoxy-5''-methyldispiro[cyclohexane-1,2'-[1]-benzofuran-3',2''-imidazole]-4''(3''H)-thione収率 21.4%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

反応条件

温度
60 °C

実験手順

5-Bromo-4′-methoxy-3H-spiro[benzofuran-2,1′-cyclohexan]-3-imine (Example 29 Step 2, 1.37 g, 4.41 mmol) and 2-oxopropanethioamide (Intermediate 2, 0.909 g, 8.81 mmol) were dissolved in dry MeOH (25 mL) and the resulting orange solution was heated at 60° C. under a nitrogen atmosphere overnight. More 2-oxopropanethioamide (400 mg) was added and stirring continued. After 24 h the mixture was allowed to cool to r.t. and the solvent was evaporated. Purification by flash chromatography using a gradient of 0-100% EtOAc in heptane afforded 373 mg of the title compound (21% yield). 1H NMR (500 MHz, DMSO-d6) δ ppm 1.35 (m, 1H), 1.47 (m, 3H), 1.87 (m, 2H), 1.97 (m, 2H), 2.29 (s, 3H), 3.13 (s, 3H), 4.11 (m, 1H), 6.99 (d, 1H), 7.16 (d, 1H), 7.48 (dd, 1H); MS (ES+) m/z 396 [M+H]+.

後処理

  1. temperatureto cool to r.t.
  2. customthe solvent was evaporated
  3. customPurification by flash chromatography

出典と根拠

ORDレコード
ord-342739e38bcd4ea588347cea09121623
出典データセット
uspto-grants-2016_02
特許番号
US09248129B2

反応ノート

読み込み中…