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【结 构 式】

【分子编号】33713

【品名】methyl (2S)-2-[(tert-butoxycarbonyl)amino]-3-iodopropanoate

【CA登记号】

【 分 子 式 】C9H16INO4

【 分 子 量 】329.13485

【元素组成】C 32.84% H 4.9% I 38.56% N 4.26% O 19.44%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(VII)

The acylation of 3,4-dimethylaniline (I) with 3-chloropropionyl chloride (II) in toluene gives the expected anilide (III), which is cyclized with DMF by means of POCl3 yielding 2-chloro-3-(chloromethyl)-6,7-dimethylquinoline (IV). The reaction of (IV) with POBr3 at 100 C affords the corresponding dibromo derivative (V), which is condensed with triethyl phosphite in toluene to give the phosphonic ester (VI). The condensation of (VI) with N-(tert-butoxycarbonyl)-3-iodo-D-alanine methyl ester (VII) by means of Zn-Cu, Pd(OAc)2, tri(2-furyl)phosphine and DMA in hot toluene yields the esterified target compound (VIII), which is finally hydrolyzed with 6N HCl. Alternatively, the dichloro derivative (IV) can also be condensed with triethyl phosphite giving the phosphonate (IX), which is treated with NaI and p-toluenesulfonic acid in refluxing 2-butanone to yield the corresponding 2-iodo derivative (X). Finally, this compound is condensed with D-alanine (VII) as before to afford the previously described intermediate (VIII).

1 Swahn, B.-M. (AstraZeneca plc); Heterocyclic cpds.. EP 0736032; JP 1997506895; US 5710139; WO 9517410 .
2 Molin, H.; Pelcman, B.; Besidski, Y.; Swahn, B.-M.; Berge, O.-G.; Sandberg, M.P.; Claesson, A.; New heteroaryl-spaced phosphono alpha-amino acids are competitive NMDA antagonists with analgesic activity. Bioorg Med Chem Lett 1996, 6, 14, 1635.
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) 33707 3,4-dimethylphenylamine; 3,4-dimethylaniline 95-64-7 C8H11N 详情 详情
(II) 18936 3-chloropropanoyl chloride 625-36-5 C3H4Cl2O 详情 详情
(III) 33706 3-chloro-N-(3,4-dimethylphenyl)propanamide C11H14ClNO 详情 详情
(IV) 33708 2-chloro-3-(chloromethyl)-6,7-dimethylquinoline C12H11Cl2N 详情 详情
(V) 33711 2-bromo-3-(bromomethyl)-6,7-dimethylquinoline C12H11Br2N 详情 详情
(VI) 33712 diethyl (2-bromo-6,7-dimethyl-3-quinolinyl)methylphosphonate C16H21BrNO3P 详情 详情
(VII) 33713 methyl (2S)-2-[(tert-butoxycarbonyl)amino]-3-iodopropanoate C9H16INO4 详情 详情
(VIII) 33714 methyl (2R)-2-[(tert-butoxycarbonyl)amino]-3-[3-[(diethoxyphosphoryl)methyl]-6,7-dimethyl-2-quinolinyl]propanoate C25H37N2O7P 详情 详情
(IX) 33709 diethyl (2-chloro-6,7-dimethyl-3-quinolinyl)methylphosphonate C16H21ClNO3P 详情 详情
(X) 33710 diethyl (2-iodo-6,7-dimethyl-3-quinolinyl)methylphosphonate C16H21INO3P 详情 详情
Extended Information