【结 构 式】 |
【药物名称】GR-63116, M-14659 【化学名称】(7R,8R)-7beta-[2-(2-Aminothiazol-4-yl)-2-[(S)-carboxy-(3,4-dihydroxyphenyl)methoxyimino)acetamido]-3-(2-carboxy-5-methyl-s-triazolo[1,5-a]pyrimidin-7-ylthiomethyl)-3-cephem-4-carboxylic acid trisodium salt 【CA登记号】114627-37-1 【 分 子 式 】C28H20N9Na3O11S3 【 分 子 量 】823.6867 |
【开发单位】Ajinomoto (Originator), Mochida (Originator), GlaxoSmithKline (Licensee) 【药理作用】Cephalosporins |
合成路线1
The bromination of 3,4-diacetoxyphenylacetic acid with N-bromosuccinimide (NBS) and SOCl2 gives the corresponding bromoacetic acid (II), which is esterified with diphenyldiazomethane (III) in acetone affording the diphenylmethyl ester (IV). The reaction of (IV) with N-hydroxyphthalimide (V) by means of triethylamine in acetonitrile yields diphenylmethyl-2-phthalimidooxy-2-(3,4-diacetoxy phenyl)acetate (VI), which is treated witb methyl hydrazine in dichloromethane to give diphenylmethyl-2-aminooxy-2-(3,4-diacetoxyphenyl)acetate (VII). The condensation of (VII) with (2-triphenylmethylamino-4-thiazolyl)glyoxylic acid (VIII) in methanol affords 2-(2-triphenylmethylamino-4-thiazolyl)-2-[(Z)-(diphenyl)methoxyimino]acetic acid (IX), which is condensed with 7beta-amino-3-[2-(diphenylmethoxycarbonyl)-5-methyl-s-triazolo[1,5-a]pyrimidin-7-ylthiomethyl]-3-cephem-4-carboxylic acid diphenylmethyl ester (X) by means of dicyclohexylcarbodiimide (DCC) in dichloromethane giving the protected final product (XI). Finally, this compound is deprotected by treatment first with trifluoroacetic acid and then with NaHCO3 in water.
【1】 Ohnishi, H.; Kosuzume, H.; Mizota, M.; Suzuki, Y.; Mochida, E. (Mochida Pharmaceutical Co., Ltd.); Cephalosporin derivs.. AU 8654876; AU 8655860; EP 0197409; EP 0359291; JP 1987077392; JP 1987161793; JP 1987167784; US 4840945; US 5001121; WO 8605786 . |
【2】 Prous, J.; Castaner, J.; M-14659. Drugs Fut 1988, 13, 12, 1047. |
【3】 Kusakabe, S.; Kosuzume, H.; Kato, K.; Shiihara, T.; Murakami, K.; Yamada, H.; Ishigura, J.; Oikawa, Y.; Mochizuki, H.; Antibacterial and pharmacokinetic properties of M1. J Antibiot 1988, 41, 3, 377. |
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) | 23001 | 2-[3,4-bis(acetoxy)phenyl]acetic acid | C12H12O6 | 详情 | 详情 | |
(II) | 23002 | 2-[3,4-bis(acetoxy)phenyl]-2-bromoacetic acid | C12H11BrO6 | 详情 | 详情 | |
(III) | 23003 | Diphenyldiazomethane | C13H10N2 | 详情 | 详情 | |
(IV) | 23004 | benzhydryl 2-[3,4-bis(acetoxy)phenyl]-2-bromoacetate | C25H21BrO6 | 详情 | 详情 | |
(V) | 13505 | N-Hydroxyphthalimide; 2-Hydroxy-1H-isoindole-1,3(2H)-dione | 524-38-9 | C8H5NO3 | 详情 | 详情 |
(VI) | 23006 | benzhydryl 2-[3,4-bis(acetoxy)phenyl]-2-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)oxy]acetate | C33H25NO9 | 详情 | 详情 | |
(VII) | 23007 | benzhydryl 2-(aminooxy)-2-[3,4-bis(acetoxy)phenyl]acetate | C25H23NO7 | 详情 | 详情 | |
(VIII) | 23008 | 2-oxo-2-[2-(tritylamino)-1,3-thiazol-4-yl]acetic acid | C24H18N2O3S | 详情 | 详情 | |
(IX) | 23009 | 2-([2-(benzhydryloxy)-1-[3,4-bis(acetoxy)phenyl]-2-oxoethoxy]imino)-2-[2-(tritylamino)-1,3-thiazol-4-yl]acetic acid | C49H39N3O9S | 详情 | 详情 |
合成路线2
2-[1(S)-(3,4-dihydroxyphenyl)-1-(diphenylmethoxycarbonyl)methoxyimino]-2-[2-(triphenylmethylamino)thiazol-4-yl]-acetic acid (IX) is condensed with 7beta-amino-3-[2-(diphenylmethoxycarbonyl)-5-methyl-s-triazolo[1,5-a]pyrimidin-7-ylthiomethyl]-3-cephem-4-carboxylic acid diphenylmethyl ester (X) by means of dicyclohexylcarbodiimide (DCC) in dichloromethane giving the protected final product (XI). Finally, this compound is deprotected by treatment first with trifluoroacetic acid and then with NaHCO3 in water.
【1】 Ohnishi, H.; Kosuzume, H.; Mizota, M.; Suzuki, Y.; Mochida, E. (Mochida Pharmaceutical Co., Ltd.); Cephalosporin derivs.. AU 8654876; AU 8655860; EP 0197409; EP 0359291; JP 1987077392; JP 1987161793; JP 1987167784; US 4840945; US 5001121; WO 8605786 . |
【2】 Kusakabe, S.; Kosuzume, H.; Kato, K.; Shiihara, T.; Murakami, K.; Yamada, H.; Ishigura, J.; Oikawa, Y.; Mochizuki, H.; Antibacterial and pharmacokinetic properties of M1. J Antibiot 1988, 41, 3, 377. |
【3】 Prous, J.; Castaner, J.; M-14659. Drugs Fut 1988, 13, 12, 1047. |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(IX) | 23009 | 2-([2-(benzhydryloxy)-1-[3,4-bis(acetoxy)phenyl]-2-oxoethoxy]imino)-2-[2-(tritylamino)-1,3-thiazol-4-yl]acetic acid | C49H39N3O9S | 详情 | 详情 | |
(X) | 23010 | benzhydryl 7-[([(7R)-7-amino-2-[(benzhydryloxy)carbonyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl)sulfanyl]-5-methyl[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxylate | C41H34N6O5S2 | 详情 | 详情 | |
(XI) | 23011 | benzhydryl 7-[([(7R)-7-([2-([2-(benzhydryloxy)-1-[3,4-bis(acetoxy)phenyl]-2-oxoethoxy]imino)-2-[2-(tritylamino)-1,3-thiazol-4-yl]acetyl]amino)-2-[(benzhydryloxy)carbonyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl)sulfanyl]-5-methyl[1,2, | C90H71N9O13S3 | 详情 | 详情 |