En. Baker et al., STRUCTURE OF A BIS-SPIROACETAL, YLSULFONYL-1,7,9-TRIOXADISPIRO[5.1.5.3]-HEXADECANE, Acta crystallographica. Section C, Crystal structure communications, 49, 1993, pp. 1857-1859
The crystal structure of the title compound has been determined by X-r
ay crystallography. The two terminal rings have chair conformations, w
hile the central ring is disordered between distorted boat and chair s
tructures. The three O atoms have a cis configuration, confirming the
similarity of this compound to certain antibiotic ionophores.