(1R,2S,13R,15R,16S)-11,25-dihydroxy-13-(hydroxymethyl)-5,19-dimethoxy-8,8,22,22,27-pentamethyl-9,23-dioxa-14,27-diazaheptacyclo[14.10.1.02,14.04,12.06,10.018,26.020,24]heptacosa-4(12),5,10,18(26),19,24-hexaene-15-carbonitrile 在
2,3-二氯-5,6-二氰基-1,4-苯醌 作用下,
以
水 、
丙酮 为溶剂,
反应 0.83h,
以77%的产率得到(1R,2S,13R,15R,16S)-13-(hydroxymethyl)-8,8,22,22,27-pentamethyl-5,11,19,25-tetraoxo-9,23-dioxa-14,27-diazaheptacyclo[14.10.1.02,14.04,12.06,10.018,26.020,24]heptacosa-4(12),6(10),18(26),20(24)-tetraene-15-carbonitrile