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Trifluoroacetic acid → 2-(4-{3-[1-(3,4-Dimethyl-benzyl)-2-oxo-imidazolidin-4-yl]-propyl]-phenoxy}-2-methyl-propionic acid
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Trifluoroacetic acid | HCID 6422 | — |
| 反応物 | 2-(4-{3-[1-(3,4-Dimethyl-benzyl)-2-oxo-imidazolidin-4-yl]-propyl}-phenoxy)-2-methyl-propionic acid tert-butyl ester | HCID 57718897 | — |
| 溶媒 | Dichloromethane | HCID 6344 | — |
| 生成物 | 2-(4-{3-[1-(3,4-Dimethyl-benzyl)-2-oxo-imidazolidin-4-yl]-propyl]-phenoxy}-2-methyl-propionic acid | HCID 57718900 | 24.4% |
反応手順
A solution of 2-(4-{3-[1-(3,4-dimethyl-benzyl)-2-oxo-imidazolidin-4-yl]-propyl}-phenoxy)-2-methyl-propionic acid tert-butyl ester (0.051 g, 0.106 mmol) in CH2Cl2 (3 mL) was treated with trifluoroacetic acid (0.5 mL) and stirred at room temperature under N2 for 5 h. The solvent removed in vacuo to give crude acid that was purified by flash chromatography using 94:6 CH2Cl2:MeOH to afford 0.011 g (24%) 2-(4-{3-[1-(3,4-dimethyl-benzyl)-2-oxo-imidazolidin-4-yl]-propyl}-phenoxy) -2-methyl-propionic acid. MS (ES+) Calc'd for C25H33N2O4 (M+1) 425. Found m/z 425 (100%). 1H NMR.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US07544812B2 |
| 出典データセット | uspto-grants-2009_06 |
| ORD ID | ord-63854d25743f4357b5361d6f95f13c17 |
| 出典メモ | uspto-grants-2009_06 |