【结 构 式】 |
【分子编号】16863 【品名】2-[5-(1H-1,2,4-triazol-1-ylmethyl)-1H-indol-3-yl]ethyl triethylsilyl ether; 5-(1H-1,2,4-triazol-1-ylmethyl)-3-[2-[(triethylsilyl)oxy]ethyl]-1H-indole 【CA登记号】 |
【 分 子 式 】C19H28N4OSi 【 分 子 量 】356.54318 【元素组成】C 64.01% H 7.92% N 15.71% O 4.49% Si 7.88% |
合成路线1
该中间体在本合成路线中的序号:(IV)1) The iodination of 4-(1,2,4-triazol-1-ylmethyl)aniline (I) with ICl and CaCO3 in methanol/water gives the 2-iodoaniline (II), which is cyclized with 1-(triethylsilyl)-4-(triethylsilyloxy)-1-butyne (III) by means of paladium acetate and Na2CO3 in hot DMF yielding 5-(1,2,4-triazol-1-ylmethyl)-3-[2-(triethylsilyloxy)ethyl]-1H-indole (IV). The desilylation of (IV) with HCl in methanol affords the corresponding alcohol (V), which is condensed with dimethylamine by means of methanesulfonyl chloride and triethylamine to give MK-0462 free base (VI). Finally, this compound is treated with benzoic acid in isopropyl alcohol/isopropyl acetate solution.
【1】 Castañer, J.; Mealy, N.; Rabassseda, X.; MK-0462. Drugs Fut 1995, 20, 7, 676. |
【2】 Lieberman, D.R.; Reamer, R.A.; Reider, P.J.; Cottrell, I.F.; Chen, C.-Y.; Verhoeven, T.R.; Larsen, R.D.; Houghton, P.G.; Synthesis of the 5-HT1D receptor agonist MK-0462 via a Pd-catalyzed coupling reaction. Tetrahedron Lett 1994, 35, 38, 6981-4. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
10202 | Benzoic acid | 65-85-0 | C7H6O2 | 详情 | 详情 | |
(I) | 16860 | 4-(1H-1,2,4-triazol-1-ylmethyl)aniline; 4-(1H-1,2,4-triazol-1-ylmethyl)phenylamine | C9H10N4 | 详情 | 详情 | |
(II) | 16861 | 2-iodo-4-(1H-1,2,4-triazol-1-ylmethyl)phenylamine; 2-iodo-4-(1H-1,2,4-triazol-1-ylmethyl)aniline | C9H9IN4 | 详情 | 详情 | |
(III) | 16862 | triethylsilyl 4-(triethylsilyl)-3-butynyl ether; triethyl[[4-(triethylsilyl)-3-butynyl]oxy]silane | 160194-28-5 | C16H34OSi2 | 详情 | 详情 |
(IV) | 16863 | 2-[5-(1H-1,2,4-triazol-1-ylmethyl)-1H-indol-3-yl]ethyl triethylsilyl ether; 5-(1H-1,2,4-triazol-1-ylmethyl)-3-[2-[(triethylsilyl)oxy]ethyl]-1H-indole | C19H28N4OSi | 详情 | 详情 | |
(V) | 16864 | 2-[5-(1H-1,2,4-triazol-1-ylmethyl)-1H-indol-3-yl]-1-ethanol | C13H14N4O | 详情 | 详情 | |
(VI) | 16865 | N,N-dimethyl-2-[5-(1H-1,2,4-triazol-1-ylmethyl)-1H-indol-3-yl]-1-ethanamine; N,N-dimethyl-N-[2-[5-(1H-1,2,4-triazol-1-ylmethyl)-1H-indol-3-yl]ethyl]amine | C15H19N5 | 详情 | 详情 |