... ox x> March 1983 350 3B6 xi xs. ... Esterification of levonorgestrel Method A . The previously published method for the preparation of steroid 17-hydroxy esters (7-9) was ... Vlahov, R., Tarpanov, V., Stoilova, V., Boshkova-Ljapova, M., Milenkov, B. and Vlahov, J., STEROIDS in press. ...
![[(8R,9S,10R,14S)-13-ethyl-17-ethynyl-3-oxo-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-yl] hexanoate Structure](https://image.chemsrc.com/caspic/343/13635-16-0.png)