(1'R,3a'R,8a'S,9'S,9a'S)-1'-甲基-3'-氧代-N,N-二苯基-3',3a',5',7',8',8a',9',9a'-八氢-1'H-螺[[1,3]二氧戊环-2,6'-萘并[2,3-C]呋喃]-9'甲酰胺

(1'R,3a'R,8a'S,9'S,9a'S)-1'-甲基-3'-氧代-N,N-二苯基-3',3a',5',7',8',8a',9',9a'-八氢-1'H-螺[[1,3]二氧戊环-2,6'-萘并[2,3-C]呋喃]-9'甲酰胺

(1'R,3a'R,8a'S,9'S,9a'S)-1'-Methyl-3'-oxo-N,N-diphenyl-3',3a',5',7',8',8a',9',9a'-octahydro-1'H-spiro[[1,3]dioxolane-2,6'-naphtho[2,3-c]furan]-9'-carboxamide