J. Wittenberg et al., Crystal structure of 1,8-dimethyl-7 alpha-methoxy-10 alpha-(triisopropylsilyloxy)-(2 beta)-12-oxatricyclo[6.3.1.0(2,7)]dodecane-3 beta,4 alpha-diol, [(C3H7)(3)SiO](CH3)(2)(OH)(2)(OCH3)(C11H12O), Z KRIST-NEW, 215(1), 2000, pp. 153-154