会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 18. 发明申请
    • COMPOSITIONS AND PROCESSES FOR PREPARING 13-DEOXY-ANTHRACYCLINES
    • 用于制备13-去氧 - 蒽醌的组合物和方法
    • US20080015345A1
    • 2008-01-17
    • US11777057
    • 2007-07-12
    • Gerald WalshRichard Olson
    • Gerald WalshRichard Olson
    • C07H15/00
    • C07H15/24
    • 13-benzenesulfonylhydrazone anthracyclines useful in producing improved yields in the synthesis 13-deoxyanthrcyclines, and an improved method of reducing 13-benzene-sulfonylhydrazone anthracyclines to 13-deoxyanthrcyclines wherein the reduction reaction is maintained at temperatures of about 55° C. to 64° C. without stirring or agitation. The reaction is completed with the addition of aqueous bicarbonate which forms the 13-deoxyanthracycline and precipitates. The precipitates are filtered and the precipitate and filtrate are extracted separately with organic solvents. The crude 13-deoxy anthracycline can be converted to 5-imino-13-deoxy anthracycline by reaction with methanolic ammonia. The reaction can also be performed with an acidic pyridinium salt instead of a strong acid so that neutralization of the reaction or extraction of the product is not necessary, thereby facilitating purification.
    • 可用于在合成13-脱氧肾上腺素中产生改善产量的13-苯磺酰腙蒽环类抗生素,以及将13-苯磺酰腙蒽环类抗生素还原为13-脱氧肾上腺素的改进方法,其中还原反应保持在约55℃至64℃ ,不搅拌或搅拌。 反应完成,加入形成13-脱氧蒽环并沉淀的碳酸氢盐水溶液。 将沉淀物过滤,并将沉淀物和滤液用有机溶剂分开萃取。 粗制的13-脱氧蒽环霉素可以通过与甲醇氨反应而转化成5-亚氨基-13-脱氧蒽环霉素。 该反应也可以用酸性吡啶鎓盐代替强酸进行,从而不需要中和反应或提取产物,从而有助于纯化。
    • 20. 发明申请
    • Compositions and processes for preparing 13-deoxy-anthracyclines
    • 用于制备13-脱氧蒽环类药物的组合物和方法
    • US20060100421A1
    • 2006-05-11
    • US10982873
    • 2004-11-08
    • Gerald WalshRichard Olson
    • Gerald WalshRichard Olson
    • C07H15/24
    • C07H15/24
    • 13-benzenesulfonylhydrazone anthracyclines useful in producing improved yields in the synthesis 13-deoxyanthrcyclines, and an improved method of reducing 13-benzene-sulfonylhydrazone anthracyclines to 13-deoxyanthrcyclines wherein the reduction reaction is maintained at temperatures of about 55° C. to 64° C. without stirring or agitation. The reaction is completed with the addition of aqueous bicarbonate which forms the 13-deoxyanthracycline and precipitates. The precipitates are filtered and the precipitate and filtrate are extracted separately with organic solvents. The crude 13-deoxy anthracycline can be converted to 5-imino-13-deoxy anthracycline by reaction with methanolic ammonia. The reaction can also be performed with an acidic pyridinium salt instead of a strong acid so that neutralization of the reaction or extraction of the product is not necessary, thereby facilitating purification.
    • 可用于在合成13-脱氧肾上腺素中产生改善产量的13-苯磺酰腙蒽环类抗生素,以及将13-苯磺酰腙蒽环类抗生素还原为13-脱氧肾上腺素的改进方法,其中还原反应保持在约55℃至64℃ ,不搅拌或搅拌。 反应完成,加入形成13-脱氧蒽环并沉淀的碳酸氢盐水溶液。 将沉淀物过滤,并将沉淀物和滤液用有机溶剂分开萃取。 粗制的13-脱氧蒽环霉素可以通过与甲醇氨反应而转化成5-亚氨基-13-脱氧蒽环霉素。 该反应也可以用酸性吡啶鎓盐代替强酸进行,从而不需要中和反应或提取产物,从而有助于纯化。