| 摘要 |
(a) Indenopyridines of general formula (I) and their salts:- R1 = H-, low alkyl-, alkenyl- or alkynyl-, benzyl-, phenylethyl- R2 = H-, Cl-, Br-, lower alkyl- e.g. 2-methyl-1, 3, 4, 9b-tetrahydro-2H-indeno(1, 2-c) pyridine (b) Hydroxyindenopyridine intermediates (II):- e.g. 2-methyl 1, 2, 3, 4, 4a, 9b-hexahydro-5H-indeno-(1,2-c) pyridin-5-ol. Analgesics, sedatives, hypotensives. (a) Dehydration of hydroxy-cpd. (II) with strong acid (II) (I) (b) Catalytic reduction of ketone (III) using a complex alkali metal hydride, e.g. lithium aluminium hydride. |
