06-10-1992 дата публикации
Номер: US5153352A
A compound of the formula: ##STR1## wherein A is a purin-9-yl group, a heterocyclic isostere of a purin-9-yl group, a pyrimidin-1-yl group or a heterocyclic isostere of a pyrimidin-1-yl group; E is hydrogen, --CH 2 OH or --OH; and G and D are independently selected from hydrogen, C 1 to C 10 alkyl, --OH, --CH 2 OH, --CH 2 OR 20 wherein R 20 is C 1 to C 6 alkyl, --CH 2 OC(O)R 21 wherein R 21 is C 1 to C 10 alkyl, --CH 2 OC(O)CH(R 22 )(NHR 23 ) wherein R 22 is the side chain of any of the naturally occuring amino acids and R 23 is hydrogen or --C(O)CH(R 24 )(NH 2 ) wherein R 24 is the side chain of any of the naturally occuring amino acids, --CH 1 SH, --Ch 2 Cl, --Ch 2 F, --CH 2 Br, --CH 2 I, --C(O)H, --CH 2 CN, --CH 2 N 3 , --CH 2 NR 1 R 2 , --CO 2 R 1 , --CH 2 CH 2 OH, --CH 2 CH 2 OR 20 wherein R 20 is as defined above, --CH 2 CH 2 OC(O)R 21 wherein R 21 is as defined above, --CH 2 CH 2 OC(O)CH(R 22 )(NHR 23 ) wherein R 22 and R 23 are as defined above, --CH 2 CH 2 PO 3 H 2 , --Ch 2 OPO 3 H 2 , --OCH 2 PO 3 H 2 and --CH 2 CO 2 R 3 wherein R 1 and R 2 are independently selected from hydrogen and C 1 to C 10 alkyl and R 3 is hydrogen, C 1 to C 10 alkyl, carboxyalkyl or aminoalkyl; or a pharmaceutically acceptable salt thereof.
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