RU 2810501. Luchnikova N.A., Grishko V.V., Ivshina I.B. Method for producing 5α,22α-dihydroxy-hypsogenic acid using Rhodococcus rhodochrous cells. Effective date for property rights: 28.04.2023. Date of filing: 28.04.2023. Registered with the Public Register for Inventions 27.12.2023. Date of publication: 27.12.2023. Bull. 36.