公开(公告)号：US4284763A

公开(公告)日：1981-08-18

申请号：US133975

申请日：1980-03-26

申请人： Leslie A. W. Thelwall ,  Leslie Hough ,  Anthony C. Richardson

发明人： Leslie A. W. Thelwall ,  Leslie Hough ,  Anthony C. Richardson

IPC分类号： C07H17/00 ,  C07H5/02 ,  C07H9/04 ,  C07H13/00 ,  C07H13/06 ,  C07H15/04 ,  C07H9/02

CPC分类号： C07H5/02 ,  C07H13/00 ,  C07H13/06 ,  C07H15/04 ,  C07H9/04

摘要： Novel sugar acetals such as those of formula ##STR1## where R.sup.a is hydrocarbyl; R.sup.b and R.sup.c are hydrogen or hydrocarbyl; R.sup.3' R.sup.4' and R.sup.6' are hydrogen or R.sup.4' with R.sup.3' or R.sup.6' is ##STR2## are made from 1,4-linked reducing disaccharides by a new exchange acetalation process in which the solvent is omitted. The sugar acetals have free hydroxy groups on the ring which groups can be converted to other substituents, e.g. chlorodeoxy or fatty acid acyl. After deprotection, the corresponding derivative of the initial disaccharide is obtained.

摘要翻译： 新型糖缩醛，例如其中R a为烃基的式（Ⅰ）化合物; Rb和Rc是氢或烃基; R 3'R 4'和R 6'是氢或R 4'，其中R 3'或R 6'是通过新的交换缩醛化方法由1,4-连接的还原二糖制成的，其中省略了溶剂。 糖缩醛在环上具有游离羟基，这些基团可以转化成其它取代基，例如。 氯代脱氧或脂肪酸酰基。 脱保护后，得到初始二糖的相应衍生物。