Synthesis of new 2′, 3′-modified uridine derivatives from 2′,3′-ene-2′-phenylselenonyl uridine by Michael addition reactions
作者:W. Tong、Z. Xi、C. Gioeli、J. Chattopadhyaya
DOI:10.1016/s0040-4020(01)86406-1
日期:1991.1
synthetic utilities of 2′,3′-ene-2′-phenylselenones 12 and 13 as synthetic equivalent of a dication [CH2+-CH2+] 5 have been demonstrated. They act as Michael acceptors, and undergo conjugate addition reactions at C-3′ with various sulfur, nitrogen, oxygen and carbon nucleophiles giving various C-3′ substituted-2,2′-O-anhydro-, or 2′,3′-ene-3′-substituted, or 2′,3′-fused nucleoside derivatives. Easy access
已经证明了2',3'-烯-2'-苯基硒烯酮12和13的合成效用为[CH 2 + -CH 2 + ] 5的合成等价物。它们充当迈克尔受体,并在C-3'与各种硫,氮,氧和碳亲核试剂进行共轭加成反应,得到各种C-3'取代的-2,2'-O-脱水-或2',3' -ene-3'-取代的或2',3'-融合的核苷衍生物。易于从2',3'-ene-2'-苯基硒烯酮12和13接近这些3'-取代的核苷,使其成为从2',3'-ene-3'-可获得的相应2'-取代衍生物的有力补充。苯硒醚基核苷4(参考72–74)。