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4-Methylphenethyl bromide → (E)-3-{1'-[2-(4-methyl-phenyl)-ethyl]-4-oxo-spiro[chromane-2,4'-piperidine]-6-yl}-acrylic acid methyl ester
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 4-Methylphenethyl bromide | HCID 570680 | — |
| 反応物 | (E)-3-{1'-tert-butoxycarbonyl-4-oxo-spiro[chromane-2,4'-piperidine]-6-yl}-acrylic acid methyl ester | HCID 52952087 | — |
| 生成物 | (E)-3-{1'-[2-(4-methyl-phenyl)-ethyl]-4-oxo-spiro[chromane-2,4'-piperidine]-6-yl}-acrylic acid methyl ester | HCID 66932181 | 89.7% |
反応手順
(E)-3-{4-Oxo-spiro[chromane-2,4′-piperidine]-6-yl}-acrylic acid methyl ester (253 mg, 0.749 mmol, Intermediate 1, hydrochloride salt) was alkylated using 1-(2-bromo-ethyl)-4-methyl-benzene (0.23 ml, 1.5 mmol) as described in Example 56, Step A, giving (E)-3-{1′-[2-(4-methyl-phenyl)-ethyl]-4-oxo-spiro[chromane-2,4′-piperidine]-6-yl}-acrylic acid methyl ester (282 mg) as a light brown solid.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US08592444B2 |
| 出典データセット | uspto-grants-2013_11 |
| ORD ID | ord-ac770a4c66e04a0f86816fc195775c5d |
| 出典メモ | uspto-grants-2013_11 |