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【结 构 式】

【药物名称】Vardenafil hydrochloride hydrate, BAY-38-9456, Vivanza, Levitra

【化学名称】2-[2-Ethoxy-5-(4-ethylpiperazin-1-ylsulfonyl)phenyl]-5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(3H)-one hydrochloride trihydrate

【CA登记号】224785-91-5 (anhydrous), 224789-15-5 (diHCl), 224785-90-4 (free base, anhydrous)

【 分 子 式 】C23H39ClN6O7S;C23H32N6O7S.HCl.3H2O;C23H32N6O7S.HCl

【 分 子 量 】579.12028;482.98

【开发单位】Bayer (Originator), GlaxoSmithKline (Comarketer)

【药理作用】RENAL-UROLOGIC DRUGS, Treatment of Erectile Dysfunction, Treatment of Male Sexual Dysfunction, Phosphodiesterase V (PDE5A) Inhibitors

合成路线1

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

 

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

合成路线3

 

1 Seidel D. Brehmer P, Schoof Y. et al. 2003. Synthesis of 14C-labelled vardenafil hydrochloride and metabolites. J Label Camp Radiopharm, 46 (11): 1019~1032
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XI) 66929 4-((4-ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-2-yl)phenyl)sulfonyl)-1-ethylpiperazine 1-oxide hydrochloride   C23H32N6O5S.HCl 详情 详情
(I) 66921 2-iodophenol 30587-23-6 C6H5IO 详情 详情
(II) 66922 2-hydroxybenzonitrile   C7H5NO 详情 详情
(III) 66923 2-ethoxybenzonitrile   C9H9NO 详情 详情
(IV) 66924 2-ethoxybenzimidamide hydrochloride   C9H13ClN2O 详情 详情
(VI) 66925 (Z)-3-butyramido-1-ethoxy-1-oxobut-2-en-2-yl ethyl oxalate   C14H21NO7 详情 详情
(VII) 66926 (Z)-N-(1-(3-(2-ethoxyphenyl)-5-oxo-4,5-dihydro-1,2,4-triazin-6(1H)-ylidene)ethyl)butyramide   14CC16H22N4O3 详情 详情
(VIII) 66927 2-(2-ethoxyphenyl)-5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(3H)-one   C17H20N4O2 详情 详情
(IX) 66928 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

合成路线4

1 Seidel D. Brehmer P, Schoof Y. et al. 2003. Synthesis of 14C-labelled vardenafil hydrochloride and metabolites. J Label Camp Radiopharm, 46 (11): 1019~1032
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) 66927 2-(2-ethoxyphenyl)-5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(3H)-one   C17H20N4O2 详情 详情
(II) 66928 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
(III) 66930 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
(IV) 66931 4-ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-2-yl)benzenesulfonamide   C17H21N5O4S 详情 详情
(V) 66932 2-(2-ethoxy-5-(piperazin-1-ylsulfonyl)phenyl)-5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(3H)-one   C21H28N6O4S 详情 详情
(VI) 66933 4-ethoxy-N-(2-(ethylamino)ethyl)-3-(5-methyl-4-oxo-7-propyl-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-2-yl)benzenesulfonamide   C21H30N6O4S 详情 详情
(VII) 66934 N-(2-aminoethyl)-4-ethoxy-3-(5-methyl-4-oxo-7-propyl-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-2-yl)benzenesulfonamide   C19H26N6O4S 详情 详情

合成路线5

 

1 Charles I, Latham DWA, Hartley D. et aL. 1980. J Chem Soc, Perkin-Trans l, 1980: 1139~1140
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成

合成路线6

 

1 Heim-Riether A. Healy J. 2005. A novel method for the synthesis of imdazo[5,l-f][1,2,4]triazin-4(3H)-ones. J Org Chem, 70 (18): 7331- 7337
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(II) 66936 ethyl 1-amino-4-methyl-1H-imidazole-5-carboxylate   C7H11N3O2 详情 详情
(IV) 66939 2-(2-ethoxyphenyl)-5-methylimidazo[5,1-f][1,2,4]triazin-4(3H)-one   C14H14N4O2 详情 详情
(I) 66935 ethyl 4-methyl-1H-imidazole-5-carboxylate 51605-32-4 C7H10N2O2 详情 详情
(III) 66938 ethyl 1-(2-ethoxybenzamido)-5-methyl-1H-imidazole-4-carboxylate   C16H19N3O4 详情 详情
(V) 66940 4-ethoxy-3-(5-methyl-4-oxo-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-2-yl)benzene-1-sulfonyl chloride   C14H13ClN4O4S 详情 详情
(VII) 66937 ethyl 1-amino-5-methyl-1H-imidazole-4-carboxylate   C7H11N3O2 详情 详情

合成路线7

 

1 Heim-Riether A, Healy J. 2005. A novel method for the synthesis of imidazo[5,1-f][1,2,4 ]triazin-4(3H) -ones. J Org Chem, 70 (18): 7331~7337
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) 66941 4-methyl-2-propyl-1H-imidazole-5-carboxamide   C8H13N3O 详情 详情
(II) 66942 1-amino-4-methyl-2-propyl-1H-imidazole-5-carboxamide   C8H14N5O 详情 详情
(III) 66943 1-(2-ethoxybenzamido)-4-methyl-2-propyl-1H-imidazole-5-carboxamide   C17H22N5O3 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

合成路线8

 

1 Chen L. Ma YH. Xie F. et al. 2006. The synthesis of a phosphodiesterase (V) inhibitor varderiafil. 化学世界,28 (5), 287~289
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) 31032 alanine 302-72-7 C3H7NO2 详情 详情
(II) 44353 N-butyrylalanine C7H13NO3 详情 详情
(III) 66944 ethyl 3-butyramido-2-oxobutanoate   C10H17NO4 详情 详情
(IV) 66945 2-ethoxybenzonitrile 6609-57-0 C9H9NO 详情 详情
(V) 44352 2-ethoxybenzenecarboximidamide 53623-81-7 C9H12N2O 详情 详情
(VI) 66946 N-(1-(3-(2-ethoxyphenyl)-5-oxo-4,5-dihydro-1,2,4-triazin-6-yl)ethyl)butyramide   C17H22N4O3 详情 详情
(VII) 66947 2-(2-ethoxyphenyl)-5-methyl-7-propylimidazo[1,5-b]pyridazin-4(1H)-one   C18H21N3O2 详情 详情
(VIII) 66948 4-ethoxy-3-(5-methyl-4-oxo-7-propyl-1,4-dihydroimidazo[1,5-b]pyridazin-2-yl)benzenesulfonic acid   C18H21N3O5S 详情 详情
(IX) 66949 4-ethoxy-3-(5-methyl-4-oxo-7-propyl-1,4-dihydroimidazo[1,5-b]pyridazin-2-yl)benzene-1-sulfonyl chloride   C18H20ClN3O4S 详情 详情

合成路线9

 

1 Nowakowski M, Gehring R. Heilmann W, et aL. 2002. Preparation 0f 2-(sulfonamidophenyl) imiduotriazinones.DE 10063108
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) 66948 4-ethoxy-3-(5-methyl-4-oxo-7-propyl-1,4-dihydroimidazo[1,5-b]pyridazin-2-yl)benzenesulfonic acid   C18H21N3O5S 详情 详情
(II) 66949 4-ethoxy-3-(5-methyl-4-oxo-7-propyl-1,4-dihydroimidazo[1,5-b]pyridazin-2-yl)benzene-1-sulfonyl chloride   C18H20ClN3O4S 详情 详情
Extended Information