Dicyclohexylcarbodiimide → Ethyl 3-imino-5-methoxy-2,3-dihydroimidazo[1,5-a]pyridine-7-carboxylate

HRID 249734

反応式

HRID 249734 の反応式
[CH2:1]([O:3][C:4]([C:6]1[CH:11]=[C:10]([O:12][CH3:13])[N:9]=[C:8]([CH2:14][NH:15][C:16]([NH:18]C(OCC2C3C=CC=CC=3C3C2=CC=CC=3)=O)=S)[CH:7]=1)=[O:5])[CH3:2].C1CCC(N=C=NC2CCCCC2)CC1>C1(C)C=CC=CC=1>[NH:18]=[C:16]1[N:9]2[C:10]([O:12][CH3:13])=[CH:11][C:6]([C:4]([O:3][CH2:1][CH3:2])=[O:5])=[CH:7][C:8]2=[CH:14][NH:15]1

参加物

4

実験手順

1.17 g (2.38 mmol) of N-(4-ethoxycarbonyl-6-methoxypyridin-2-ylmethyl)-N′-(fluoren-9-ylmethyloxycarbonyl)thiourea (20e) were treated with 491 mg (2.38 mmol) of DCC in 25 ml of toluene and refluxed for six hours. After standing overnight at RT, the mixture was freed from the solvent and the residue was chromatographed on silica gel (heptane/ethyl acetate 75:25→ethyl acetate/methanol 90:10), it being possible to isolate 88 mg of the title compound.

後処理

  1. temperaturerefluxed for six hours
  2. customthe residue was chromatographed on silica gel (heptane/ethyl acetate 75:25→ethyl acetate/methanol 90:10), it

出典と根拠

ORDレコード
ord-26a9d4dd61c04d089dbadc506405d775
出典データセット
uspto-grants-2011_01
特許番号
US07863269B2

関連ノート

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