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【结 构 式】 
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【分子编号】65713 【品名】2,2-Diethoxy-N,N-dimethylethylamine; (Dimethylamino)acetaldehyde diethyl acetal 【CA登记号】3616-56-6 |
【 分 子 式 】C8H19NO2 【 分 子 量 】161.2444 【元素组成】C 59.59% H 11.88% N 8.69% O 19.84% |
合成路线1
该中间体在本合成路线中的序号：(VI)Acylation of 6-amino-4-(3-chloro-4-fluorophenylamino)-7-[tetrahydrofuran-3(S)-yloxy]quinazoline (I) with the acid chloride generated from bromocrotonic acid (II) and oxalyl chloride leads to the bromocrotonamide (III), which is finally submitted to bromide displacement with dimethylamine (1). Scheme1.
In an alternative method, aminoquinazoline (I) is acylated with diethylphosphonoacetic acid (IV) by means of carbonyldiimidazole in THF to give the phosphonoacetamide (V), which is finally condensed with (dimethylamino)acetaldehyde diethyl acetal (VI) under basic conditions (2). Scheme 1.
| 【1】 Himmelsbach, F., Langkopf, E., Solca, F., Jung, B., Baum, A., Blech, S. (Boehringer Ingelheim Pharma GmbH & Co., KG). Quinazoline derivatives, medicaments containing said compounds, their utilization and method for the production thereof. DE 10063435, EP 1345910, JP 2004516283, US 2002173509, US 2006100223, US 7019012, WO 0250043. |
| 【2】 Soyka, R., Rall, W., Kulinna, C., Sieger, P., Schnaubelt, J. (Boehringer Ingelheim Pharma GmbH & Co., KG). Process for preparing amino crotonyl compounds. DE 10349113, EP 1678165, JP 2007510624, US 2005085495, WO 2005037824. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (I) | 65710 | N4-(3-Chloro-4-fluorophenyl)-7-[[(3S)-tetrahydro-3-furanyl]oxy]-4,6-quinazolinediamine | 314771-76-1 | C18H16ClFN4O2 | 详情 | 详情 |
| (II) | 50563 | (E)-4-bromo-2-butenoic acid | 13991-36-1 | C4H5BrO2 | 详情 | 详情 |
| (III) | 65711 | C22H19BrClFN4O3 | 详情 | 详情 | ||
| (IV) | 36512 | 2-(diethoxyphosphoryl)acetic acid | 3095-95-2 | C6H13O5P | 详情 | 详情 |
| (V) | 65712 | C24H27ClFN4O6 | 详情 | 详情 | ||
| (VI) | 65713 | 2,2-Diethoxy-N,N-dimethylethylamine; (Dimethylamino)acetaldehyde diethyl acetal | 3616-56-6 | C8H19NO2 | 详情 | 详情 |