选择性催化氧化醇类化合物为相应的醛或酮是一类重要的官能团转化反应。四甲基哌啶氧化物(TEMPO)是一种含有稳定的氮氧自由基(NO&#......

Seven novel spin labeled derivatives of 4′-demethyl-4-deoxypodophyllotoxin with nitroxyl radicals(TMHPO and TMPRO) were......