Received 29 June 2010
aKey Laboratory of Forest Resources Conservation and Use in the Southwest Mountains of China (Ministry of Education), Southwest Forestry University, Kunming 650224, People's Republic of China,bZhejiang Apeloa Kangyu Pharmaceutical Co Ltd, Jinhua 322118, People's Republic of China, and cSchool of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resources (Ministry of Education), Yunnan University, Kunming 650091, People's Republic of China
Correspondence e-mail: firstname.lastname@example.org
In the title compound, C21H30O3, the five-membered ring adopts an envelope conformation, the cyclohexene ring displays a half-chair conformation and the two cyclohexane rings have normal chair conformations. In the crystal structure, weak intermolecular C-HO hydrogen bonding links the molecules into supramolecular chains running along .
Rocuronium is a non-depolarizing neuromuscular blocking agent. The title compound was obtained as an intermediate during our ongoing investigation of the synthesis of rocuronium bromide; for further information on rocuronium bromide, see: Tuba et al. (2002); Auer (2007). For the synthesis, see: Tuba (1980); Newaz & Tcholakian (1984).
Data collection: SMART (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: XU2791 ).
The authors gratefully acknowledge computing time provided by the X-ray Diffraction Analysis Centre of the Key Laboratory of Medicinal Chemistry for Natural Resources (Ministry of Education), Yunnan University, China.
Auer, U. (2007). Vet. J. 173, 422-427.
Bruker (2004). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Newaz, S. N. & Tcholakian, R. K. (1984). Steroids, 43, 445-456.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Tuba, Z. (1980). Arzneim. Forschung. 30, 342-346.
Tuba, Z., Maho, S. & Vizi, S. (2002). Curr. Med. Chem. 9, 1507-1536.