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【结 构 式】

【分子编号】56236

【品名】4-chloro-4-(4-chloro-1,2,5-thiadiazol-3-yl)-1-azatricyclo[3.3.1.1~3,7~]decane

【CA登记号】

【 分 子 式 】C11H13Cl2N3S

【 分 子 量 】290.21584

【元素组成】C 45.53% H 4.51% Cl 24.43% N 14.48% S 11.05%

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:(VIII)

1,4-Cyclohexanedione mono-ethylene ketal (I) was converted to nitrile (II) upon treatment with p-tosylmethyl isocyanide. Reduction of the nitrile (II) by means of LiAlH4 gave rise to amino ketal (III). Ketal group hydrolysis in (III) with concomitant double Mannich reaction of the intermediate amino ketone (IV) with formaldehyde furnished the aza adamantanone (V). Knoevenagel condensation of ketone (V) with ethyl cyanoacetate and triethylamine produced the unsaturated cyano ester (VI), which was further reduced to (VII) by catalytic hydrogenation over Pd/C. The target thiadiazole derivative (VIII) was then obtained by nitrosation of (VII) with isoamyl nitrite, followed by reaction with sulfur monochloride. Selective dehalogenation of (VIII) was accomplished by catalytic hydrogenation over Pd/C yielding the mono-chloro derivative (IX). Chloride displacement in (IX) with sodium hydrogen sulfide generated the intermediate thiol (X), which was subsequently alkylated with propyl bromide to produce a mixture of s- (XI) and r-isomers (XII), separable by column chromatography.

1 Grewal, G.; Bayne, C.; Alessi, M.K.; et al.; Selective M4-agonists for treatment of pain. 16th Int Symp Med Chem (Sept 18 2000, Bologna) 2000, Abst PB-74.
2 Cai, X.; Grewal, G.; Toy-Palmer, A.; Latham, G.M. (UCB SA); Muscarinic agonists and antagonists. EP 1112272; JP 2002523416; US 6093724; WO 0011001 .
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) 11377 1,4-Dioxaspiro[4.5]decan-8-one 4746-97-8 C8H12O3 详情 详情
(II) 56230 1,4-dioxaspiro[4.5]decane-8-carbonitrile C9H13NO2 详情 详情
(III) 56231 1,4-dioxaspiro[4.5]dec-8-ylmethanamine; 1,4-dioxaspiro[4.5]dec-8-ylmethylamine C9H17NO2 详情 详情
(IV) 56232 4-(aminomethyl)cyclohexanone C7H13NO 详情 详情
(V) 56233 1-azatricyclo[3.3.1.1~3,7~]decan-4-one C9H13NO 详情 详情
(VI) 56234 ethyl 2-(1-azatricyclo[3.3.1.1~3,7~]dec-4-ylidene)-2-cyanoacetate C14H18N2O2 详情 详情
(VII) 56235 ethyl 2-(1-azatricyclo[3.3.1.1~3,7~]dec-4-yl)-2-cyanoacetate C14H20N2O2 详情 详情
(VIII) 56236 4-chloro-4-(4-chloro-1,2,5-thiadiazol-3-yl)-1-azatricyclo[3.3.1.1~3,7~]decane C11H13Cl2N3S 详情 详情
(IX) 56237 4-(4-chloro-1,2,5-thiadiazol-3-yl)-1-azatricyclo[3.3.1.1~3,7~]decane C11H14ClN3S 详情 详情
(X) 56238 4-(1-azatricyclo[3.3.1.1~3,7~]dec-4-yl)-1,2,5-thiadiazole-3-thiol; 4-(1-azatricyclo[3.3.1.1~3,7~]dec-4-yl)-1,2,5-thiadiazol-3-ylhydrosulfide C11H15N3S2 详情 详情
Extended Information