氢化可的松置于potassium Phosphate Buffer体系中,用 甲醇 作为反应溶剂,化学反应生成 泼尼松龙 参考文献:Application Of Urethane Prepolymers To Immobilization Of Biocatalysts: .Delta.1-Dehydrogenation Of Hydrocortisone By Arthrobacter Simplex Cells Entrapped With Urethane Prepolymers. 标题:Application Of Urethane Prepolymers To Immobilization Of Biocatalysts: .Delta.1-Dehydrogenation Of Hydrocortisone By Arthrobacter Simplex Cells Entrapped With Urethane Prepolymers. 摘要:通过将细胞悬浮液与由甲苯二异氰酸酯和聚醚二醇合成的水溶性聚氨酯预聚物混合,固定了具有显著类固醇δ1-脱氢酶活性的丙酮干燥的单纯节杆菌细胞.在氢化可的松转化为泼尼松龙的过程中,被固定的细胞活性受聚氨酯预聚物特性的影响,如预聚物中异氰酸酯基团的含量,聚醚二元醇的分子量和二元醇中环氧乙烷的含量.在水性反应混合物中加入 10% 的有机溶剂,如甲醇和乙二醇,可大大提高底物的溶解度和固定化细胞的反应速率.即使在含有 30% 甲醇的体系中,固定化细胞的活性仍然很高,而游离细胞的活性则受到严重抑制.电子受体(酚嗪甲硫酸盐或 2,6-二氯苯酚靛酚)的存在极大地刺激了固着细胞和游离细胞的类固醇转化.固定化技术大大提高了细胞在重复反应中的稳定性. DOI:10.1271/bbb1961.44.1119
专利号:US-6696592-B2 优先权日:2001-05-22 标题:Methods of making 21-[4′-(nitrooxyalkyl)benzoate] corticosteroid derivatives and intermediates useful in the synthesis thereof 发明人:MCINTYRE DONALD G 权利人:NICOX SA 摘要:The present invention provides methods of making 21-[4′-(nitrooxyalkyl)benzoate] corticosteroid derivatives according to the following general reaction scheme: n The invention also provides intermediates useful in making such 21-[4′-(nitrooxyalkyl)benzoate] corticosteroid derivatives as well as methods for making such intermediates.
专利号:US-2003153545-A1 优先权日:2001-05-22 标题 :Methods of making 21-[4'-(nitrooxyalkyl)benzoate] corticosteroid derivatives and intermediates useful in the synthesis thereof
专利号:EP-1395544-B1 优先权日:2001-05-22 标 题:Methods of making 21- 4'-(nitrooxyalkyl) benzoate corticosteroid derivatives and intermediates useful in the synthesis thereof
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合成参考文献
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