Khripach, V., Zhabinskii, V., Zhiburtovich, Y., Ivanova, G., Konstantinova, O., Tsavlovskii, D., Lorenz, S., & Schneider, B. (2010). Preparation and synthetic application of partially protected brassinosteroids. Steroids, 75, 27-33. doi:10.1016/j.steroids.2009.09.010.