Hypodematine, isolated from Hypodematium sinense Iwatsuki as an alkaloid with a new skeleton, was synthesized via nine reaction steps, in which the synthesis of 2-aryl-1-benzazocines via Beckmann rearrangement of 5H-benzocyclohepten-5-one oxime mesylate in dry toluene is discussed.
Hypodematine, isolated from Hypodematium sinense Iwatsuki as an alkaloid with a new skeleton, was synthesized via nine reaction steps, in which the synthesis of 2-aryl-1-benzazocines via Beckmann rearrangement of 5H-benzocyclohepten-5-one oxime mesylate in dry toluene is discussed.
Substituted tetrahydrobenzothiophenes and method of preparation thereof
申请人:American Cyanamid Company
公开号:US04153611A1
公开(公告)日:1979-05-08
This disclosure describes novel 5,6,7,8-tetrahydro-4H-cyclohepta[b]thien-4-ylureas useful as animal growth regulants and processes for the preparation thereof.