Malonic acid mono-{3,5,7-trihydroxy-6-methyl-8-oxo-1-[4,5,6-trihydroxy-6-(2,6,8,10-tetrahydroxy-7,9,11-trimethyl-12-oxo-dodecyl)-tetrahydro-pyran-2-ylmethyl]-octyl} ester                                                                                                                                                              在
                                                                                                                                                                                 sodium tetrahydroborate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 2.0h,
                                                                                                                以150 mg的产率得到Malonic acid mono-[3,5,6,7,9,13,15,17,19-nonahydroxy-14,16,18-trimethyl-1-(2,4,6,7-tetrahydroxy-5-methyl-heptyl)-nonadecyl] ester