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2,4-Dichloro-6,7-dimethoxyquinazoline → 3-[1-(2-Chloro-6,7-dimethoxy-4-quinazolinyl)-4-piperidinyl]-1,2,3,4-tetrahydro-1,6-dimethyl-2,4-dioxo-quinazoline
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 2,4-Dichloro-6,7-dimethoxyquinazoline | HCID 520327 | — |
| 反応物 | 1,2,3,4-Tetrahydro-1,6-dimethyl-2,4-dioxo-3-(4-piperidinyl)quinazoline hydrobromide | HCID 21851222 | — |
| 生成物 | 3-[1-(2-Chloro-6,7-dimethoxy-4-quinazolinyl)-4-piperidinyl]-1,2,3,4-tetrahydro-1,6-dimethyl-2,4-dioxo-quinazoline | HCID 15434513 | 48% |
反応手順
The procedure similar to that described in Example 40 was repeated, except that 354.0 mg (1.0 mmol) of 1,2,3,4-tetrahydro-1,6-dimethyl-2,4-dioxo-3-(4-piperidinyl)-quinazoline hydrobromide (Compound v) obtained in Example 41 was used and 2,4-dichloro-6,7-dimethoxyquinazoline was used in place of 4-chloro-6,7-dimethoxyquinazoline. As a result, 239.2 mg (yield: 48%) of Compound 78 was obtained as white crystals.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05624926 |
| 出典データセット | uspto-grants-1997_04 |
| ORD ID | ord-771c5b53373c4c84bb41953e46ea8a9a |
| 出典メモ | uspto-grants-1997_04 |