A combination of 1,3-dipolar cycloaddition of Z-nitrone (2) to the chi
ral dipolarophile (3) and subsequent ring transformation of the result
ing adducts (4 and 6) to piperidinol (17) has provided a new practical
synthesis of 2,3,6-trisubstituted piperidine alkaloid, (+)-azimic aci
d (1).