Five 14α-hydroxylated derivatives of androstane and pregnane steroids were obtained using mycelium of the mold fungus Curvularia lunata (VKPM F-981). The conditions for microbiological transformation of androst-4-en-3,17-dione that enabled its 14α-hydroxy analog to be obtained in yields up to 60% with substrate loading 6 g/L were determined. The 21-acetoxy analog of proligestone was synthesized from 14α-hydroxycortexolone that was formed simultaneously with hydrocortisone during hydroxylation of cortexolone by C. lunata. The resulting 14α- and 14α,21-hydroxysteroids could be used as precursors for the synthesis of new drugs.
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Translated from Khimiko-Farmatsevticheskii Zhurnal, Vol. 47, No. 2, pp. 35 – 40, February, 2013.
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Andryushina, V.A., Voishvillo, N.E., Druzhinina, A.V. et al. 14α-Hydroxylation of steroids by mycelium of the mold fungus Curvularia lunata (VKPM F-981) to produce precursors for synthesizing new steroidal drugs. Pharm Chem J 47, 103–108 (2013). https://doi.org/10.1007/s11094-013-0905-6
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DOI: https://doi.org/10.1007/s11094-013-0905-6