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Communication | Special issue | Vol 10, No. 1, 1978, pp.237-240
Published online, 1st January, 1970
DOI: 10.3987/S-1978-01-0237
Synthesis of B-Homoaporphine Skeleton. Steric Requirements in the Formation of the Phenanthro[10,1-b,c]azepine System

Ichiya Ninomiya* and Takeaki Naito

*Kobe Women’s College of Pharmacy, Motoyamakita, Higashinad, Kobe, Hyogo 658, Japan

Abstract

B-Homoaporphine skeletons (4a and b) were prepared via two routes; the photocyclization of the 1-phenyloxazolo[4,3-a][2]benzazepin-3-one (1) and the Friedel-Crafts-type cyclization of 2-oxophenanthro[9,10-d]oxazoline-3-propionic acid (6c).