1-isopropoxy-2-methoxy-5-(3',4',5'-trimethoxyphenyl)-8,9-dihydro-7H-benzocycloheptene

1,2-dibenzyloxy-6-hydroxyimino-6,7,8,9-tetrahydro-5H-benzocylohepten-5-one

6-Amino-1,2-bis-benzyloxy-6,7,8,9-tetrahydro-5H-benzocyclohepten-5-ol

2-Diazo-2,5,6,7,8,9-hexahydro-benzocyclohepten-1-one