N,N-diethyl 4-t-butyldimethylsilyl-5-hydroxy-3-methoxy-2-(5-hydroxy-1-isopropoxy-4-methoxy-2-naphthyl)phenylcarboxamide                                                                                                                                                              在
                                                                                                                                                                                 
溶剂黄146                                                                                                                                  作用下,
                                                                                                                                                                                        反应 0.17h,
                                                                                                                以89%的产率得到9-t-butyldimethylsilyl-8-hydroxy-1-isopropoxy-10,12-dimethoxy-6H-naphtho[1,2-b]benzo[b]pyran-6-one