Asymmetric synthesis of novel tetrahydroquinoline derivatives with a sugar building block and their bioactivities

Some novel spiro-tetrahydroquinolines were stereoselectively synthesized by using keto-sugar derived from sucrose as a building block in one pot under mild conditions. The in vitro immunobiological activity and cytotoxicity of these novel tetrahydroquinolines were investigated. The results implied that these spiro-compounds have obvious bioactivity and may be structurally modified to improve bioactivity further.