以 4- 硝基查耳酮为原料的反应,其产物可获得最高达96%ee值.Up to 96 % ee was achieved with 4 - nitro - chalcone as enone substrate.查耳酮类化合物是合成黄酮类化合物重要的中间体, 具有重要的药理作用.Chalcon is an important intermediate for synthesizing flavone, and has variety of...
Prohibit the use of hemostatic clamp holding any normal tissues.禁止用止血钳夹持任何正常组织.Objective : To test the type of collagen sponge and its hemostatic properties.目的: 检测胶原海绵的类型以及止血作用.Objective : To observe the hemostatic effec...
In a dream you can be transported back in time.在梦里你可以回到过去。It's as if I'm living in a hazy dream world.我好像生活在缥缈的梦境里。You could waste your whole life on a pipe-dream.白日梦会荒废你一生。...