Synthesis p. 837 - 840 (1995)
Update date:2022-07-30
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2-Alkyl- or 2-aryl-9-methyl-4,5-dihydro-6H,8H-pyrimido[1,2,3-cd]purine-8,10(9H)-di ones 5 were obtained either by a four-step synthesis starting from 6-chloro-5-nitro-3-methylpyrimidine-2,4(1H,3H)-dione (1) via 9-amino-7-methyl-3,4-dihydro-2H-pyrimido[1,6
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Doi:10.1016/j.cbi.2010.11.010
(2011)Doi:10.1016/S0022-328X(73)80036-1
(1973)Doi:10.1016/S0957-4166(00)00407-9
(2000)Doi:10.1021/jo00123a021
(1995)Doi:10.1007/BF00807168
(1995)Doi:10.1016/0957-4166(95)00197-W
(1995)
