Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
Process for preparing cyclosporin A
 A process for the isolation of cyclosporin A comprising the steps of: adding a lower alkanol solvent to a culture fluid of a mutant of Tolypocladium inflatum to form a mixture, filtering the mixture to form an extract, transferring the extract to methylene chloride as a solvent therefor, and column chromatographing the resultant product on silica gel. 
Chong Kun Dang Corp.
C A
C07K A61P
inventional inventional
Jung Woo Gang Sun Kyeong Bok Nam Hee Don Wha Sang Chul Yun Beom
Kim Choi Min Choi Lee Lee Ham