7-苯乙酰氨基-3-氯甲基-4-头孢烷酸对甲氧基苄酯合成路线 (共 8 条)
反应条件
sodium methylate in tetrahydrofuran; methanol T=-2 - 2°C; 4.25 h; Product distribution / selectivity;
参考文献
NIPPON CHEMICAL INDUSTRIAL COMPANY LIMITED
Patent: EP1666483 A1, 2006 ;
Location in patent: Page/Page column 20-21 ;
反应条件
sodium methylate in tetrahydrofuran; methanol T=-2 - 2°C; 5.25 h; Product distribution / selectivity;
参考文献
EP1666483 A1, ;
Page/Page column 16-19 ;
反应条件
1: sodium iodide / acetone / 5 h / -5 - 0 °C / Darkness; Inert atmosphere 2: ethyl acetate / -5 °C / Inert atmosphere 3: phenol / 4.5 h / 50 °C 4: penicillin G acylase / water / 37 °C / pH 8 - 8.5 / aq. acetate buffer; Enzymatic reaction 5: tetrahydrofuran; water / 6.5 h / 25 °C / pH 6.8 - 7.2 6: sulfuric acid / water / 5 °C / pH 1 - 2 View Scheme
参考文献
Duan, Xuemin; Lu, Yao; Han, Juan; Chen, Ligong; Zheng, Pengwu
Synthetic Communications, 2011 , vol. 41, # 5 p. 629 - 636
反应条件
1: sodium iodide / acetone / 5 h / -5 - 0 °C / Darkness; Inert atmosphere 2: ethyl acetate / -5 °C / Inert atmosphere 3: phenol / 4.5 h / 50 °C 4: penicillin G acylase / water / 37 °C / pH 8 - 8.5 / aq. acetate buffer; Enzymatic reaction 5: tetrahydrofuran; water / 6.5 h / 25 °C / pH 6.8 - 7.2 View Scheme
参考文献
Duan, Xuemin; Lu, Yao; Han, Juan; Chen, Ligong; Zheng, Pengwu
Synthetic Communications, 2011 , vol. 41, # 5 p. 629 - 636
反应条件
1: NaI / acetone / 2 h / Ambient temperature 2: NaHCO3 / CH2Cl2; H2O / 17 h / Ambient temperature 3: 1) POCl3, pyridine, 2) MeOH / 1) CH2Cl2, 0-5 deg C, 2 h, 2) 0-5 deg C, 1 h 4: 632 mg / POCl3, pyridine / CH2Cl2 / 2 h / -20 - -10 °C 5: 95 mg / CF3CO2H, anisole / 1 h / 0 °C View Scheme
参考文献
Chemical and Pharmaceutical Bulletin, , vol. 39, # 9 p. 2433 - 2436
参考文献
Tetrahedron Letters, , vol. 28, # 24 p. 2745 - 2746
反应条件
1: NaI / acetone / 2 h / Ambient temperature 2: NaHCO3 / CH2Cl2; H2O / 17 h / Ambient temperature 3: 1) POCl3, pyridine, 2) MeOH / 1) CH2Cl2, 0-5 deg C, 2 h, 2) 0-5 deg C, 1 h 4: 632 mg / POCl3, pyridine / CH2Cl2 / 2 h / -20 - -10 °C 5: 95 mg / CF3CO2H, anisole / 1 h / 0 °C 6: 25 mg / dimethylformamide / 1 h / -20 °C View Scheme
参考文献
Sakagami; Atsumi; Yamamoto; Tamura; Yoshida; Nishihata; Fukatsu
Chemical and Pharmaceutical Bulletin, 1991 , vol. 39, # 9 p. 2433 - 2436
参考文献
Tsuji, Teruji; Itani, Hikaru; Ishitobi, Hiroyuki
Tetrahedron Letters, 1987 , vol. 28, # 24 p. 2745 - 2746