21-O-(2-((3-(bis(diethylphosphono)methyl)carbamoyl)propanoyloxy)acetyl)-1',4-didehydro-1-deoxy-1,4-dihydro-3'-hydroxy-5'-[4-(2-methylpropyl)-1-piperazinyl]-1-oxorifamycin VIII 在
2,6-二甲基吡啶 、
三甲基溴硅烷 、 ammonium acetate 、
溶剂黄146 作用下,
以
二氯甲烷 、
水 为溶剂,
反应 40.0h,
以39%的产率得到21-O-(2-((3-(bisphosphonomethyl)carbamoyl)propanoyloxy)acetyl)-1',4-didehydro-1-deoxy-1,4-dihydro-3'-hydroxy-5'-[4-(2-methylpropyl)-1-piperazinyl]-1-oxorifamycin VIII ammonium salt