“…143 Adamantyliminopiperidine hydrochlorides 177, which exhibit antiviral and antidiabetic activities, are produced by the reaction of the imidate 6a with adamantylamine hydrochlorides. 144,145 The condensation of 9-aminofluorene (178a) 146,147 or 5-aminodibenzocycloheptane (178b) 147,148 hydrochlorides with the D 1piperideines 6 gives compounds 179a,b, possessing hypoglycemic, 146,147 antiphlogistic, 147,148 anticoagulant and diuretic 146 ± 148 properties.…”