The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 1985
Filed:
Sep. 24, 1982
Eva Udvardy Nagy nee Cserey Pechany, Budapest, HU;
Istvan Bartho, Budapest, HU;
Gabor Hantos, Budapest, HU;
Maria Trinn, Budapest, HU;
Zsuzsa Vida, Budapest, HU;
Jozsef Szejtli, Budapest, HU;
Agnes Stadler nee Szoke, Budapest, HU;
Ilona Habon, Budapest, HU;
Marta Balazs nee Czurda, Budapest, HU;
Richter Gedeon Vegyeszeti Gyar Rt., Budapest, HU;
Chinoin Gyogyszer- Es Vegyeszeti Termekek Gyara Rt., Budapest, HU;
Abstract
Microbiological conversions of cyclodextrins are intensified by adding to the reaction mixture 0.2 to 3 moles of .alpha.-, .beta.- or .gamma.-cyclodextrin or an optical mixture thereof pro mole of the steroid substrate, before, at the beginning or during the conversion. The cyclodextrin if desired, can be removed after the reaction. In this way the reaction velocity can be increased, the reaction time is reduced, the substrate concentration in the solution, i.e. its solubility is increased or the so called product inhibition may be avoided. In certain cases of more alternatives the desired reaction can be catalyzed and in this manner the selectivity is increased.