Fp. Wang et al., New access to 7,17-seco norditerpenoid alkaloids via reduction of the corresponding 8-chloro derivatives, CHEM PHARM, 48(12), 2000, pp. 1912-1916
New access to the 7, 17-seco norditerpenoid alkaloids 9 (60%) from yunnacon
itine (5), as well as 14 (46%) and 15 (22%) from isotalatizidine (10), via
selective hydrolysis, chlorination and reduction with NaBH4 is described.