Triethylamine → Tert-butyl 3-(2-ethoxy-2-oxoethyl)-3-(5-(phenylethynyl)furan-2-carboxamido)-azetidine-1-carboxylate

HRID 1192913노트

반응식

HRID 1192913 반응식
[NH2:1][C:2]1([CH2:13][C:14]([O:16][CH2:17][CH3:18])=[O:15])[CH2:5][N:4]([C:6]([O:8][C:9]([CH3:12])([CH3:11])[CH3:10])=[O:7])[CH2:3]1.CCN(CC)CC.[C:26]1([C:32]#[C:33][C:34]2[O:38][C:37]([C:39](ON3C(=O)CCC3=O)=[O:40])=[CH:36][CH:35]=2)[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1>CN(C=O)C>[CH2:17]([O:16][C:14](=[O:15])[CH2:13][C:2]1([NH:1][C:39]([C:37]2[O:38][C:34]([C:33]#[C:32][C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)=[CH:35][CH:36]=2)=[O:40])[CH2:5][N:4]([C:6]([O:8][C:9]([CH3:10])([CH3:11])[CH3:12])=[O:7])[CH2:3]1)[CH3:18]

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 574408102,5-Dioxopyrrolidin-1-yl 5-(phenylethynyl)furan-2-carboxylateHCID 58109966Tert-butyl 3-amino-3-(2-ethoxy-2-oxoethyl)azetidine-1-carboxylate

생성물 1

HCID 66865345Tert-butyl 3-(2-ethoxy-2-oxoethyl)-3-(5-(phenylethynyl)furan-2-carboxamido)-azetidine-1-carboxylate수율 81%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

A stirred solution of tert-butyl 3-amino-3-(2-ethoxy-2-oxoethyl)azetidine-1-carboxylate (130 mg, 0.503 mmol) in DMF (3 mL) was treated with NEt3 (0.19 mL, 1.37 mmol), and 2,5-dioxopyrrolidin-1-yl 5-(phenylethynyl)furan-2-carboxylate, prepared as described in Preparation 5 (141 mg, 0.457 mmol). The reaction was stirred overnight, at room temperature, then the solvent removed in vacuo and the crude product purified by column chromatography to obtain the title compound (168 mg, 81%). 1H NMR (400 MHz, CDCl3) δ 7.57 (m, 2H), 7.40 (m, 3H), 7.12 (s, 1H), 7.04 (s, 1H), 6.70 (s, 1H), 4.17 (m, 4H), 4.03 (d, 2H, J=9.6 Hz), 3.17 (s, 2H), 1.45 (s, 9H), 1.26 (t, 3H, J=7.2 Hz); MS ESI 453.2 [M+H]+, calcd for [C25H28N2O6+H]+ 453.51.

후처리

  1. customprepared
  2. customthe solvent removed in vacuo
  3. customthe crude product purified by column chromatography

출처 및 근거

ORD 기록
ord-5e23ef891c124963aa390eb1d192fc06
출처 데이터셋
uspto-grants-2014_03
특허 번호
US08680282B2

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