... Chinese Chemical Letters. ... b Division of Antibiotics, Shanghai Institute for Food and Drug Control, Shanghai 200233, China. Received 19 September 2011, Available online 7 ... a Data were obtained at 125 MHz in CDCl 3 using TMS as internal standard (chemical shift δ (ppm)). ...
![(1R,8S,9S,10R,11R,13S,14S,17R)-1,11-dihydroxy-10,13-dimethyl-1,3',4',8,9,10,11,12,13,14,15,16-dodecahydro-5'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,5'(2H)-dione Structure](https://image.chemsrc.com/caspic/458/1363502-03-7.png)