Construction of the sugar part of polycavernoside-A, which has been isolated as one of toxic principles from the red alga Polycavernosa tsudai, is described starting from l-fucose and d-xylose in order to elucidate the relative stereochemistry.
                                    本文描述了从l-岩借糖和d-
木糖出发构建红藻Polycavernosa tsudai中分离出的毒性成分之一多腔糖苷-A的糖部分,以阐明相对立体
化学。