@article{TackeStreckerSheldricketal.1979, author = {Tacke, R. and Strecker, M. and Sheldrick, W. S. and Heeg, E. and Berndt, B. and Knapstein, K. M.}, title = {Sila-Pharmaka, 14. Mitt. Darstellung und Eigenschaften sowie Kristall-und Molek{\"u}lstruktur von Sila-Difenidol}, series = {Zeitschrift f{\"u}r Naturforschung B}, volume = {34}, journal = {Zeitschrift f{\"u}r Naturforschung B}, number = {9}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-128391}, pages = {1279-1285}, year = {1979}, abstract = {Sila-difenidol (6b), a sila-analogue of the drug difenidol (6a), was synthesized according to Scheme 1. 6b and its new precursors 3 and 5 were characterized by their physical and chemical properties, and their structures confirmed by elementary analyses, 1H NMR and mass spectroscopy. 6 b crystallizes orthorhombic \(P2_12_12_1\) with a = 11.523(1), b = 14.366(4), c = 11.450(1) {\AA}, Z = 4, \(D_{ber} = 1.14 gcm^{-3}\). The structure was refined to R = 0.050 for 1897 reflexions. A strong nearly linear intramolecular O-H···N hydrogen bond of 2.685 {\AA} is observed. The anticholinergic, histaminolytic and musculotropic spasmolytic activities of 6 a and 6 b are reported.}, language = {de} }