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1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (E)-N-((3-ethylbenzofuran-2-yl)methyl)-N-methyl-3-(3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-7-yl)acrylamide

HRID 1362402
ノート
印刷プレビュー

反応式

HRID 1362402 の反応式
[CH2:1]([C:3]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[O:5][C:4]=1[CH2:12][NH:13][CH3:14])[CH3:2].[O:15]=[C:16]1[CH2:21][O:20][C:19]2[CH:22]=[C:23](/[CH:26]=[CH:27]/[C:28]([OH:30])=O)[CH:24]=[N:25][C:18]=2[NH:17]1.ON1C2C=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C.CN(C)CCCN=C=NCC>CN(C=O)C.O>[CH2:1]([C:3]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[O:5][C:4]=1[CH2:12][N:13]([CH3:14])[C:28](=[O:30])/[CH:27]=[CH:26]/[C:23]1[CH:24]=[N:25][C:18]2[NH:17][C:16](=[O:15])[CH2:21][O:20][C:19]=2[CH:22]=1)[CH3:2]
参加物実験手順後処理出典と根拠反応ノート

参加物

8

反応物 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 57742058(E)-3-(3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-7-yl)acrylic acidHCID 59277558(3-Ethyl-benzofuran-2-ylmethyl)methylamine

生成物 1

HCID 16660978
(E)-N-((3-ethylbenzofuran-2-yl)methyl)-N-methyl-3-(3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-7-yl)acrylamide
収率 53.5%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

実験手順

To a solution of (3-ethylbenzofuran-2-yl)-N-methylmethanamine (115 mg, 0.6 mmol) in DMF (5 mL) were added in sequential order (E)-3-(3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazin-7-yl)acrylic acid (140 mg, 0.54 mmol), 1-hydroxybenzotriazole (84 mg, 0.6 mmol), diisopropylethylamine (282 uL, 1.62 mmol), and N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide (120 mg, 0.6 mmol). The mixture was stirred at room temperature overnight, cooled in an ice bath and water added with rapid stirring. The product precipitated and was filtered, triturated with ether and dried to yield the title compound as a white solid (113 mg, 52%): 1H NMR (400 MHz, DMSO-d6) δ 11.41 (s, 1H), 8.19 (s, 1H), 7.88 (d, J=6.4 Hz, 1H), 7.66 (d, J=7.6 Hz, 1H), 7.51-7.49 (m, 2H), 7.29-7.25 (m, 3H), 4.99-4.79 (rotamers, 2s, 2H), 4.68 (s, 2H), 3.39 (s, 3H), 2.79-2.73 (m, 2H), 1.23-1.20 (m, 3H); MS (ESI) m/e 392 (C22H21N3O4+H)+.

後処理

  1. temperaturecooled in an ice bath
  2. customThe product precipitated
  3. filtrationwas filtered
  4. customtriturated with ether
  5. customdried

出典と根拠

ORDレコード
ord-69660951af4e4657974e4282c664a3f6
出典データセット
uspto-grants-2011_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07879872B2

反応ノート

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