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【结 构 式】

【药物名称】Ranitidine Bismutrex, Ranitidine bismuth citrate, GR-122311-X, Tritec, Pylorid

【化学名称】N-[2-[5-(Dimethylaminomethyl)furan-2-ylmethylsulfanyl]ethyl]-N'-methyl-2-nitroethene-1,1-diamine 2-hydroxypropane-1,2,3-tricarboxylate bismuth(3+) complex (1:1:1)
      N-[2-[5-[(Dimethylamino)methyl]-2-furanylmethylsulfanyl]ethyl]-N'-methyl-2-nitro-1,1-ethenediamine compound with 2-hydroxy-1,2,3-propanetricarboxylic acid bismuth(3+) salt(1:1:1)
      N-[2-[[5-[(Dimethylamino)methyl]furfuryl]sulfanyl]ethyl]-N'-methyl-2-nitro-1,1-ethenediamine,compound with bismuth(3+) citrate (1:1)

【CA登记号】128345-62-0, 139638-15-6 (deleted CAS)

【 分 子 式 】C19H27BiN4O10S

【 分 子 量 】712.49184

【开发单位】GlaxoSmithKline (Originator)

【药理作用】Anti-Helicobacter Pylori Agents, Antiulcer Drugs, Gastric Antisecretory Drugs, GASTROINTESTINAL DRUGS, Histamine H2 Receptor Antagonists

合成路线1

The reaction of 2-furan-methanol (I) with dimethylamine and formaldehyde gives 5-(dimethylaminomethyl)furan-2-methanol (II), which is condensed with 2-sulfanylethylamine (III) yielding 2-[5-(dimethylaminomethyl)furan-2-ylsulfanyl]ethylamine (IV). The condensation of (IV) with 1-(methylamino)-1-(methylsulfanyl)-2-nitroethylene (V), obtained from 1,1,-bis(methylsulfanyl)-2-nitroethylene (VI) and methylamine, in hot acetone, or by heating at 100-120 C affords N-[2-[5-(dimethylaminomethyl)furan-2-ylmethylsulfanyl]ethyl]- N'-methyl-2-nitroethylene-1,1-diamine (VII) , which is finally complexed with bismuth (+3) citrate (VIII), obtained by reaction of NO3BiO with citric acid (IX) in hot water.

1 Castaner, J.; Rabasseda, X.; Mealy, N.; Ranitidine Bismuth Citrate. Drugs Fut 1995, 20, 5, 480.
2 Clitherow, J.W. (Glaxo Wellcome plc); Ranitidine derivs. BE 1003254; CH 679582; GB 2220937; JP 1990117684; US 5008256 .
3 Bradshaw, J.; Price, B.J.; Clitherow, J.W.; Aminoalkyl furan derivs. GB 1565966 .
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) 13848 2-Furylmethanol; Furfuryl Alcohol 98-00-0 C5H6O2 详情 详情
(II) 13849 [5-[(dimethylamino)methyl]-2-furyl]methanol C8H13NO2 详情 详情
(III) 13186 2-Aminoethanethiol; 2-Amino-1-ethanethiol; 2-Aminoethylhydrosulfide; Cysteamine 60-23-1 C2H7NS 详情 详情
(IV) 13851 2-[([5-[(Dimethylamino)methyl]-2-furyl]methyl)sulfanyl]-1-ethanamine; N-[(5-[[(2-Aminoethyl)sulfanyl]methyl]-2-furyl)methyl]-N,N-dimethylamine C10H18N2OS 详情 详情
(V) 13852 N-Methyl-N-[(E)-1-(methylsulfanyl)-2-nitroethenyl]amine; (E)-N-Methyl-1-(methylsulfanyl)-2-nitro-1-ethenamine; (E)-1-Methylthio-1-methylamino-2-nitroethylene 61832-41-5 C4H8N2O2S 详情 详情
(VI) 13853 Methyl 1-(methylsulfanyl)-2-nitrovinyl sulfide; 1,1-Bis(methylthio)-2-nitroethylene; 1,1-Bis(methylsulfanyl)-2-nitroethylene 13623-94-4 C4H7NO2S2 详情 详情
(VII) 13854 N-[2-[([5-[(Dimethylamino)methyl]-2-furyl]methyl)sulfanyl]ethyl]-N-[(E)-1-(methylamino)-2-nitroethenyl]amine; (E)-N(1)-[2-[([5-[(Dimethylamino)methyl]-2-furyl]methyl)sulfanyl]ethyl]-N(1)-methyl-2-nitro-1,1-ethenediamine; Ranitidine 66357-35-5 C13H22N4O3S 详情 详情
(VIII) 13855 bismuth(3+) 2-hydroxy-1,2,3-propanetricarboxylate; Bismuth Citrate 813-93-4 C6H5BiO7 详情 详情
(IX) 13856 2-Hydroxy-1,2,3-propanetricarboxylic acid; Citric acid 77-92-9 C6H8O7 详情 详情
Extended Information