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【结 构 式】

【分子编号】51704

【品名】2-Chloro-6-fluorobenzonitrile; 2-Fluoro-6-chlorobenzonitrile

【CA登记号】668-45-1

【 分 子 式 】C7H3ClFN

【 分 子 量 】155.5586632

【元素组成】C 54.05% H 1.94% Cl 22.79% F 12.21% N 9%

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:(III)

NPS-2143 can be obtained by coupling 2-chloro-6-[2(R)-oxiranylmethoxy]benzonitrile (I) with 1,1-dimethyl-2-(2-naphthyl)ethylamine (II) in ethanol at 50-60 C. Intermediates (I) and (II) can be obtained as follows: a) Treatment of 2-chloro-6-fluorobenzonitrile (III) with 18-crown-6 and potassium acetate in refluxing acetonitrile, followed by hydrolysis with NaOH in H2O provides 3-chloro-2-cyanophenol (IV), which is then condensed with 3-nitrobenzenesulfonic acid (2R)-2-oxiranylmethyl ester (V) in DMF by means of NaH to furnish 2-chloro-6-[2(R)-oxiranylmethoxy]benzonitrile (I). b) Treatment of 2-(aminomethyl)naphthalene (VI) with 2,4,6-triphenylpyrylium tetrafluoroborate in EtOH, followed by the reaction of the resulting compound dissolved in DMSO with the sodium salt obtained by treatment of 2-nitropropane (VII) with NaH in MeOH, gives the nitro derivative (VIII). Finally, reduction of the nitro group of (VIII) by hydrogenation over Ni Raney in EtOH yields 1,1,-dimethyl-2-(2-naphthyl)ethylamine (II).

2 Sheehan, D.; Del Mar, E.G.; Lago, M.A.; Southall, L.S.; Callahan, J.F.; Kotecha, N.R.; Thompson, M.; Barmore, R.M.; Keenan, R.M.; Van Wagenen, B.C. (GlaxoSmithKline Inc.; GlaxoSmithKline plc; NPS Pharmaceuticals, Inc.); Method of using calcilytic cpds.. US 6022894 .
1 del Fresno, M.; Doggrell, S.A.; Castaner, J.; NPS-2143. Drugs Fut 2002, 27, 2, 140.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
51708   C23H17BF4O 详情 详情
(I) 51706 2-chloro-6-[(2R)oxiranylmethoxy]benzonitrile C10H8ClNO2 详情 详情
(II) 51710 1,1-dimethyl-2-(2-naphthyl)ethylamine; 2-methyl-1-(2-naphthyl)-2-propanamine C14H17N 详情 详情
(III) 51704 2-Chloro-6-fluorobenzonitrile; 2-Fluoro-6-chlorobenzonitrile 668-45-1 C7H3ClFN 详情 详情
(IV) 51705 2-chloro-6-hydroxybenzonitrile C7H4ClNO 详情 详情
(V) 16259 (2S)oxiranylmethyl 3-nitrobenzenesulfonate; (S)-(+)-Glycidyl nosylate 115314-14-2 C9H9NO6S 详情 详情
(VI) 51707 2-naphthylmethanamine; 2-naphthylmethylamine C11H11N 详情 详情
(VII) 21819 2-nitropropane 79-46-9 C3H7NO2 详情 详情
(VIII) 51709 2-(2-methyl-2-nitropropyl)naphthalene C14H15NO2 详情 详情
Extended Information