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    • 3. 发明授权
    • 6-Amino penam derivatives
    • 6-氨基penam衍生物
    • US4407755A
    • 1983-10-04
    • US289621
    • 1981-08-03
    • Robert L. CundallDerek Walker
    • Robert L. CundallDerek Walker
    • C07D499/00C07D499/42C07D499/02
    • C07D499/00
    • Penicillin sulfoxide esters are reacted with an isocyanate to produce the corresponding (substituted)-2-carbamoyloxymethylpenam, the corresponding (substituted)-3-carbamoyloxycepham or the corresponding 3-methylcephem. The 6- or 7-side-chain of these products may be cleaved to give the corresponding 6-amino (penams) or 7-amino (cephams and cephems) compounds, and the latter may be reacylated to produce different 6-acyl-2-carbamoyloxymethyl penams, 7-acyl-3-carbamoyloxy cephams and 7-acyl-3-methylcephems. The substituent groups may be removed from the (substituted)-2-carbamoyloxypenams or the (substituted)-3-carbamoyloxycephams to give the corresponding free 2-carbamoyloxymethylpenams or 3-carbamoyloxycephams, respectively.
    • 将青霉素亚砜酯与异氰酸酯反应以产生相应的(取代的)-2-氨基甲酰氧基甲基氨基钠,相应的(取代的)-3-氨基甲酰氧基头孢烯或相应的3-甲基头孢烯。 这些产物的6-或7-侧链可能被切割,得到相应的6-氨基(半阴离子)或7-氨基(cephams和cephems)化合物,后者可以被再酰化以产生不同的6-酰基-2 - 氨基甲酰氧基甲基半阴离子,7-酰基-3-氨基甲酰氧基Cephams和7-酰基-3-甲基头孢烯。 取代基可以从(取代的)-2-氨基甲酰氧基草酸或(取代的)-3-氨基甲酰氧基头孢中除去,分别得到相应的游离的2-氨基甲酰氧基甲基氨基或3-氨基甲酰氧基头孢。
    • 5. 发明授权
    • Process for producing carbamoyl substituted penams and carbamoyl
substituted cephams from penicillin sulfoxide esters
    • 用于从青霉素亚砜酯生产氨基甲酰取代的阴茎和氨基甲酰取代的Cepham的方法
    • US4310459A
    • 1982-01-12
    • US092248
    • 1979-11-07
    • Robert L. CundallDerek Walker
    • Robert L. CundallDerek Walker
    • C07D499/00C07D499/04C07D501/04C07D501/02
    • C07D499/00
    • Penicillin sulfoxide esters are reacted with an isocyanate to produce the corresponding (substituted)-2-carbamoyloxymethylpenam, the corresponding (substituted)-3-carbamoyloxycepham or the corresponding 3-methylcephem. The 6- or 7-side-chain of these products may be cleaved to give the corresponding 6-amino (penams) or 7-amino (cephams and cephems) compounds, and the latter may be reacylated to produce different 6-acyl-2-carbamoyloxymethyl penams, 7-acyl-3-carbamoyloxy cephams and 7-acyl-3-methylcephems. The substituent groups may be removed from the (substituted-2-carbamoyloxypenams or the (substituted)-3-carbamoyloxycephams to give the corresponding free 2-carbamoyloxymethylpenams or 3-carbamoyloxycephams, respectively.
    • 将青霉素亚砜酯与异氰酸酯反应以产生相应的(取代的)-2-氨基甲酰氧基甲基氨基钠,相应的(取代的)-3-氨基甲酰氧基头孢烯或相应的3-甲基头孢烯。 这些产物的6-或7-侧链可能被切割,得到相应的6-氨基(半阴离子)或7-氨基(cephams和cephems)化合物,后者可以被再酰化以产生不同的6-酰基-2 - 氨基甲酰氧基甲基半阴离子,7-酰基-3-氨基甲酰氧基Cephams和7-酰基-3-甲基头孢烯。 可以从(取代-2-氨基甲酰氧基草丁腈或(取代的)-3-氨基甲酰氧基头孢中除去取代基,分别得到相应的游离的2-氨基甲酰氧基甲基氨基或3-氨基甲酰氧基头孢。