42273-08-5Relevant articles and documents
Aza Triterpenes. Part-IV: Synthesis of Ring A Fused (3,2-c)Isoxazoles and (3,2-c)Furazans of Methyl Oleanate and Methyl Betulinate
Govardhan, Ch.,Reddy, R. Prasad,Ramaiah, T. Sundara,Rao, T. Venkatrajeshwar
, p. 858 - 860 (2007/10/02)
Ring A fused isoxazoles (III and IX) and furazans (VI and XII) of methyl oleanate and methyl betulinate were synthesised through their 3-keto-2-formyl derivatives (II and VIII) and through their 2,3-bis oximes (V and XI), respectively.