Antitumor and antiviral activity of synthetic .alpha.- and .beta.-ribonucleosides of certain substituted pyrimido[5,4-d]pyrimidines: a new synthetic strategy for exocyclic aminonucleosides
作者:Yogesh S. Sanghvi、Steven B. Larson、Steven S. Matsumoto、L. Dee Nord、Donald F. Smee、Randall C. Willis、Thomas L. Avery、Roland K. Robins、Ganapathi R. Revankar
DOI:10.1021/jm00123a022
日期:1989.3
transformed to 4-methoxy-8-(beta-D-ribofuranosylamino)pyrimido-[5,4-d]pyrimidine (MRPP, 14) and its alpha-anomer (17). Application of this procedure to 3 with NH2Me or NHMe2 resulted in the synthesis of 4-(methylamino)- and 4-(dimethylamino)-8-(beta-D-ribofuranosylamino)pyrimido [5,4-d]pyrimidine (24 and 27, respectively). A synthesis of 8-(beta-D-ribofuranosylamino)pyrimido[5,4-d]pyrimidin-4(3H)-one
已开发出抗病毒和抗肿瘤剂4-氨基-8-(β-D-呋喃呋喃糖基氨基)嘧啶[5,4-d]嘧啶(ARPP,8)及其α-端基异构体(11)的新颖直接合成方法。用2,3-O-异亚丙基-D-呋喃呋喃糖胺处理2,4,6,8-四氯嘧啶[5,4-d]嘧啶(1),得到2,4,6-三氯-8-( 2,3-O-异亚丙基-β-和-α-D-呋喃核糖基氨基)嘧啶基[5,4-d]嘧啶(3和4)的比例为1.0:0.7。用NH3对3和4的4-氯基进行亲核取代,得到4-氨基-2,6-二氯-8-[(2,3-O-异亚丙基-β-D-呋喃呋喃糖基)氨基]嘧啶[5, 4-d]嘧啶(6)及其α-端基异构体(9)。6和9的催化氢化,然后进行异异丙基化,分别得到ARPP(8)和α-端基异构体11。同样,3和4已经转化为4-甲氧基-8-(β-D-呋喃呋喃糖基氨基)嘧啶基-[5,4-d]嘧啶(MRPP,14)及其α-端基异构体(17)。用NH 2 Me或NHMe