(1S,12R)-12-[(1S,4R,12R,16S)-7,8-dimethoxy-5-methyl-18-oxo-17-oxa-5,15-diazahexacyclo[13.4.3.01,16.04,12.06,11.012,16]docosa-2,6,8,10-tetraen-9-yl]-7-hydroxy-5,15-diazatetracyclo[10.3.1.01,5.06,11]hexadeca-6(11),7,9-triene-4,16-dione 、
三乙基硅基三氟甲磺酸酯 在
2,6-二甲基吡啶 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以68%的产率得到(1S,12R)-12-[(1S,4R,12R,16S)-7,8-dimethoxy-5-methyl-18-oxo-17-oxa-5,15-diazahexacyclo[13.4.3.01,16.04,12.06,11.012,16]docosa-2,6,8,10-tetraen-9-yl]-7-triethylsilyloxy-5,15-diazatetracyclo[10.3.1.01,5.06,11]hexadeca-6(11),7,9-triene-4,16-dione