2,8-二氮杂螺[4.5]癸烷-8-羧酸叔丁酯的合成路线如下:首先,中间体叔丁基-4-(2,2-二甲基-4,6-二羰基-1,3-二噁烷-5-亚基)哌啶-1-羧酸酯与硝基甲烷进行Michael加成,生成化合物叔丁基4-(2,2-二甲基-4,6-二羰基-1,3-二噁烷-5-基)-4-(硝基甲基)哌啶-1-羧酸酯。接着,通过催化加氢及内酰胺化得到8-(叔丁氧羰基)-3-羰基-2,8-二氮杂螺[4.5]癸烷-4-羧酸。随后进行脱羧反应,制备出3-羰基-2,8-二氮杂螺[4.5]癸烷-8-羧酸叔丁酯。进一步经开环反应,得到4-(2-羟基乙基)-4-(羟基甲基)-1-哌啶羧酸1,1-二甲基乙酯;最后,通过分子内脱水制备出目标化合物2,8-二氮杂螺[4.5]癸烷-8-羧酸叔丁酯。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3-氧代-2,8-二氮杂螺[4,5]癸烷-8-羧酸叔丁酯 | tert-butyl 3-oxo-2,8-diazaspiro[4.5]decane-8-carboxylate | 169206-67-1 | C13H22N2O3 | 254.329 |
4-(2-羟基乙基)-4-(羟基甲基)-1-哌啶羧酸 1,1-二甲基乙酯 | 1,1-dimethylethyl 4-(2-hydroxyethyl)-4-(hydroxymethyl)-1-piperidinecarboxylate | 236406-38-5 | C13H25NO4 | 259.346 |
2-苄基-2,8-二氮杂螺[4.5]癸烷-8-羧酸叔丁酯 | tert-butyl 2-benzyl-2,8-diazaspiro[4.5]decane-8-carboxylate | 236406-40-9 | C20H30N2O2 | 330.47 |
—— | tert-butyl 4-allyl-4-(hydroxymethyl)piperidine-1-carboxylate | 236406-37-4 | C14H25NO3 | 255.357 |
N-Boc-4-氰基哌啶 | 1-tert-butoxycarbonyl-4-cyanopiperidine | 91419-52-2 | C11H18N2O2 | 210.276 |
—— | 8-t-butoxycarbonyl-3-hydroxy-2-oxa-8-azaspiro[4.5]decane | 203662-20-8 | C13H23NO4 | 257.33 |
N-Boc-4-哌啶甲酸乙酯 | 1-tert-butyl 4-ethyl piperidine-1,4-dicarboxylate | 142851-03-4 | C13H23NO4 | 257.33 |
—— | tert-butyl 4-cyano-4-(2-((methylsulfonyl)oxy)ethyl)piperidine-1-carboxylate | 872850-55-0 | C14H24N2O5S | 332.421 |
—— | tert-butyl 2-benzyl-1-oxo-2,8-diazaspiro[4.5]decane-8-carboxylate | 1221818-05-8 | C20H28N2O3 | 344.454 |
—— | 1-tert-butyl 4-ethyl 4-(2-oxoethyl)piperidine-1,4-dicarboxylate | 1228603-43-7 | C15H25NO5 | 299.367 |
1-Boc-4-烯丙基-4-哌啶甲酸乙酯 | 1-tert-butyl 4-ethyl 4-(prop-2-en-1-yl)piperidine-1,4-dicarboxylate | 146603-99-8 | C16H27NO4 | 297.395 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-(1-甲基乙基)-2,8-二氮杂螺[4.5]癸烷-8-羧酸 1,1-二甲基乙酯 | tert-butyl 2-isopropyl-2,8-diazaspiro[4.5]decane-8-carboxylate | 1061682-96-9 | C16H30N2O2 | 282.426 |
2-苄基-2,8-二氮杂螺[4.5]癸烷-8-羧酸叔丁酯 | tert-butyl 2-benzyl-2,8-diazaspiro[4.5]decane-8-carboxylate | 236406-40-9 | C20H30N2O2 | 330.47 |
—— | tert-butyl 2-(pyridin-4-yl)-2,8-diazaspiro[4.5]decane-8-carboxylate | 1242850-60-7 | C18H27N3O2 | 317.431 |
—— | 2-(pyridin-3-ylcarbamoyl)-2,8-diaza-spiro[4.5]decane-8-carboxylic acid tert-butyl ester | 1257882-90-8 | C19H28N4O3 | 360.456 |
—— | 2-[3-(4-chloro-phenoxy)-benzyl]-2,8-diaza-spiro[4.5]decane-8-carboxylic acid tert-butyl ester | 1257881-58-5 | C26H33ClN2O3 | 457.013 |