Abstract
The title steroid, C34H50O6S, is an intermediate on the synthetic route between diosgenin and brassinosteroids, which possess the A ring modified with the 2α,3α-diol functionality. The polycyclic spirostan system has the expected conformation, with six-membered rings adopting chair forms and the five-membered rings envelope forms (flap atoms are the methine C atom in the C/D-ring junction and the spiro C atom connecting rings E and F). The 3β-tosylate group is oriented in such a way that S=O bonds are engaged in intermolecular hydrogen bonds with O—H and C—H donors. Chains of molecules are formed along [100] via O—H⋯O hydrogen bonds, and secondary weak C—H⋯O interactions connect two neighbouring chains in the [001] direction.
Highlights
The title steroid, C34H50O6S, is an intermediate on the synthetic route between diosgenin and brassinosteroids, which possess the A ring modified with the 2,3-diol functionality
The 3-tosylate group is oriented in such a way that S O bonds are engaged in intermolecular hydrogen bonds with O—H and C—H donors
For the hydroboration-oxidation synthetic step used for the preparation of the title compound, see: Smith & Pelter (1991); Brown (1962)
Summary
Marıa-Guadalupe Hernández Linaresd a Benemérita Universidad Autónoma de Puebla, Facultad de Ciencias Quımicas, Ciudad Universitaria, Puebla, Pue. 72570, Mexico, bUniversidad Autónoma de. Universitaria, San Nicolás de los Garza, Nuevo León CP 66451, Mexico, cHerbario y.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Acta Crystallographica Section E Structure Reports Online
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
