130753-13-8

基本信息
N-CBZ-降托品酮
N-CBZ-去甲托品酮
N-芐氧羰基去甲托品酮
N-芐氧羰基-去甲拖品酮
3-氧代-8-氮雜雙環(huán)[3,2,1]辛-8-羧酸芐酯
3-氧代-8-氮雜雙環(huán)[3,2,1]辛烷-8-羧酸芐酯
N-芐氧羰基-去甲托品酮(CAS號(hào):130753-13-8)
N-Cbz-Notropinone
N-CBZ-NORTROPINONE
N-Cbz-4-Nortropinone
N-Cbz-nortropinone ,97%
8-Cbz-3-oxo-8-azabicyclo[3.2.1]octane
Benzyl 3-oxo-8-azabicyclo[3.2.1]octane-8-carboxylate
benzyl (1s)-3-oxo-8-azabicyclo[3.2.1]octane-8-carboxylate
(1S)-BENZYL 3-OXO-8-AZABICYCLO[3.2.1]OCTANE-8-CARBOXYLATE
Benzyl (1S,5R)-3-oxo-8-azabicyclo[3.2.1]octane-8-carboxylate
物理化學(xué)性質(zhì)
制備方法

25602-68-0

501-53-1

130753-13-8
1. 將8-氮雜雙環(huán)[3,2,1]辛-3-酮鹽酸鹽(10.0g; 71.84mmol)溶于二氯乙烷(DCE, 60mL)中,緩慢滴加氯甲酸1-氯乙酯(ACE-C1, 14.5mL; 19.11g; 133.7mmol)。反應(yīng)混合物在室溫下攪拌過(guò)夜后,用乙醚(Et2O, 400mL)稀釋并過(guò)濾。濾液經(jīng)減壓濃縮,得到粗制的氯乙基氨基甲酸酯。 2. 將上述粗產(chǎn)物溶于甲醇(MeOH, 200mL)中,室溫?cái)嚢?小時(shí),隨后在55℃下減壓濃縮,得到粗制的去甲基托品酮鹽酸鹽(褐色固體,11.4g,收率98%)。 3. 粗產(chǎn)物通過(guò)甲腈重結(jié)晶純化,得到白色結(jié)晶固體(5g,收率43%)。1H NMR(400MHz, DMSO-d6)δ1.79(dd, J = 15.0,6.9Hz, 2H), 2.09(m, 2H), 2.40(d, J = 16.7Hz, 2H), 3.02(dd, J = 17.1,4.3Hz, 2H), 4.23(s, 2H), 10.00(br s, 2H)。 4. 將去甲基托品酮(5.10g; 31.55mmol)溶于二氯甲烷(CH2Cl2, 50mL)中,緩慢滴加氯甲酸芐酯(4.29mL; 5.11g; 29.98mmol)和二異丙基乙胺(DIPEA, 16.48mL; 12.23g; 94.66mmol)(注意放熱反應(yīng))。反應(yīng)混合物在室溫下攪拌30分鐘后,用二氯甲烷(100mL)稀釋。 5. 有機(jī)相用1N鹽酸(2×100mL)洗滌,無(wú)水硫酸鈉(Na2SO4)干燥后減壓濃縮,得到粗產(chǎn)物(7.2g,收率88%)。1H NMR(400MHz, CDCl3)δ1.71(dd, J = 15.0,7.2Hz, 2H), 2.12(m, 2H), 2.38(d, J = 15.9Hz, 2H), 2.67(m, 2H), 4.62(s, 2H), 5.22(s, 2H), 7.38(m, 5H)。
參考文獻(xiàn):
[1] Patent: WO2006/23852, 2006, A2. Location in patent: Page/Page column 84
[2] Patent: JP2015/124178, 2015, A. Location in patent: Paragraph 0143
[3] Patent: WO2004/100946, 2004, A1. Location in patent: Page 77
[4] Patent: WO2006/58303, 2006, A2. Location in patent: Page/Page column 71
[5] Patent: WO2010/126163, 2010, A1. Location in patent: Page/Page column 38-39