... In this paper preparation and chemical properties of the steroida1[2,3—c]furazans are reported. ... 15) K. Ueno: This Bulletin, 12, 92 (1964). 16) cf. ... (AR Katritzky, AP Ambler : Physical Methods in Heterocyclic Chemistry II, p. 233.) 19) E. Caspi, DM Piatak: Canad. ...