Journal of Organic Chemistry p. 2694 - 2696 (1991)
Update date:2022-08-05
Topics:
Sha, Chin-Kang
Young, Jenn-Jong
Yeh, Chun-Pong
Chang, Shang-Chia
Wang, Sue-Lein
The azaspiro<4.4>nonane portion 11 of cephalotaxine was prepared via an intramolecular SN2' substitution reaction followed by ozonolysis; condensation of 11 with the aromatic portion 13 gave compound 15; a Friedel-Crafts cyclization of 15 in po
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