• English
  • 简体中文
Login Register
Current Location: Home > Feedback Help Print

【结 构 式】

【分子编号】44355

【品名】4-ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-2-yl)benzenesulfonyl chloride

【CA登记号】

【 分 子 式 】C17H19ClN4O4S

【 分 子 量 】410.88112

【元素组成】C 49.69% H 4.66% Cl 8.63% N 13.64% O 15.58% S 7.8%

与该中间体有关的原料药合成路线共 2 条

合成路线1

该中间体在本合成路线中的序号:(V)

Cyclization of 2-ethoxybenzamidine (I) with 2-butyramidopropionic acid (II) and ethoxalyl chloride (III) by means of DMAP in refluxing pyridine gives 2-(2-ethoxyphenyl)-5-methyl-7-propyl-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-4-one (IV), which is sulfonated with chlorosulfonic acid to provide the sulfonyl chloride (V). Finally, this compound is condensed with 1-ethylpiperazine (VI) in dichloromethane.

1 Niewohner, U.; Bischoff, E.; Es-Sayed, M.; Schenke, T.; Schmidt, G.; Lampe, T.; Haning, H.; Imidazo[5,1-f][1,2,4]triazin-4(3H)-ones, a new class of potent PDE 5 inhibitors. Bioorg Med Chem Lett 2002, 12, 6, 865.
2 Castaner, J.; Martin, L.; Rabasseda, X.; Sorbera, L.A.; Vardenafil. Drugs Fut 2001, 26, 2, 141.
3 Perzborn, E.; Keldenich, J.; Schlemmer, K.-H.; Haning, H.; Serno, P.; Bischoff, E.; El-Sayed, M.; Niewöhner, U.; Nowakowski, M.; Schenke, T.; Dembowsky, K. (Bayer AG); 2-Phenyl substd. imidazotriazinones as phosphodiesterase inhibitors. DE 19750085; DE 19812462; EP 1049695; WO 9924433 .
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) 44352 2-ethoxybenzenecarboximidamide 53623-81-7 C9H12N2O 详情 详情
(II) 44353 N-butyrylalanine C7H13NO3 详情 详情
(III) 11043 Ethyl 2-chloro-2-oxoacetate; Ethyl oxalyl chloride 4755-77-5 C4H5ClO3 详情 详情
(IV) 44354 2-(2-ethoxyphenyl)-5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(3H)-one C17H20N4O2 详情 详情
(V) 44355 4-ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-2-yl)benzenesulfonyl chloride C17H19ClN4O4S 详情 详情
(VI) 14213 N-Ethylpiperazine; 1-Ethylpiperazine 5308-25-8 C6H14N2 详情 详情

合成路线2

该中间体在本合成路线中的序号:(V)

 

1 Pleiss U. 2003. Synthesis of [3H] vardenaffi,levitra, using a new labeling technique. J Label Comp Radiopharm, 46 (13): 1241~1247
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) 66919 4-ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-2-yl)benzenesulfonic acid   C17H20N4O5S 详情 详情
(II) 20674 N-Acetyl piperazine; 1-(1-piperazinyl)-1-ethanone 13889-98-0 C6H12N2O 详情 详情
(III) 66920 2-(5-((4-acetylpiperazin-1-yl)sulfonyl)-2-ethoxyphenyl)-5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(3H)-one   C23H30N6O5S 详情 详情
(V) 44355 4-ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-2-yl)benzenesulfonyl chloride C17H19ClN4O4S 详情 详情
Extended Information