Synonyms: 1-Piperidinyloxy,2,2,6,6-tetramethyl-4-[[[5,6,7,8-tetrahydro-8-hydroxy-7-(hydroxymethyl)-5-(3,4,5-trimethoxyphenyl)naphtho[2,3-d]-1,3-dioxol-6-yl]carbonyl]hydrazono]-,[5R-(5a,6a,7b,8a)]-; Naphtho[2,3-d]-1,3-dioxole,1-piperidinyloxy deriv.; GP 1