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[1,6-ad][1,7-a]
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[2,3-ij][2,4-b]
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61466-26-0 5H-[1]Benzopyrano[4,3-d]pyrimidin-5-ol, 2-amino-9-chloro-
112500-71-7 1,3-dimethylpyrido[4,3-d]pyrimidine-2,4(1H,3H)-dione
1449117-45-6 2-chloroethyl 2,4-dichloro-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate
38626-78-7 6-phenyl-5,6,7,8-tetrahydrophosphinino[4,3-d]pyrimidin-4-amine 6-oxide
7243-39-2 3-[(4-piperidin-1-yl-2-pyridin-3-yl-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)methyl]benzonitrile
61466-28-2 5H-[1]Benzopyrano[4,3-d]pyrimidin-5-ol, 2-(4-morpholinyl)-
112500-66-0 5-amino-1,3-dimethylpyrido[4,3-d]pyrimidine-2,4(1H,3H)-dione
446292-24-6 3-[4-[2-(1,5-dimethyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-6-yl)ethoxy]phenyl]-2-ethoxypropionic acid
646063-55-0 4H-[1]Benzopyrano[4,3-d]pyrimidin-2-amine,4-(4-chlorophenyl)-1,5-dihydro-
479074-06-1 5-(2-Ethoxyphenyl)-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidine-7-thione
7243-25-6 2-methyl-4-morpholin-4-yl-6-(morpholin-4-ylcarbonyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine
401030-82-8 7H-Pyrazolo[4,3-d]pyrimidin-7-one,5-[2-ethoxy-5-(4-morpholinylacetyl)phenyl]-1-ethyl-1,4-dihydro-3-propyl-
1201781-22-7 1-chloroethyl 2,4-dichloro-7,8-dihydropyrido[4,3-d]pyrimidine-6(5H)-carboxylate
425634-96-4 2H-Thiopyrano[4,3-d]pyrimidine-1(5H)-propanamide, 3,4,7,8-tetrahydro-2,4-dioxo-N-[2-oxo-2-[4-(2-pyrimidinyl)-1-piperazinyl]ethyl]-
479074-07-2 3-(6,7-Dihydro-1-methyl-3-propyl-7-thioxo-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-benzenesulfonyl Chloride
871025-50-2 1H-Pyrazolo[4,3-d]pyrimidin-7-amine,N-[3-chloro-4-[(3-fluorophenyl)methoxy]phenyl]-
33823-01-7 [3-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-2h-pyrazolo[4,3-d]pyrimidin-7-yl]-trimethylazanium;chloride
944901-92-2 2-CHLORO-4-METHYL-5,6,7,8-TETRAHYDROPYRIDO[4,3-D]PYRIMIDINE
361340-57-0 1-methyl-5-(5-nitro-2-propoxyphenyl)-3-propyl-4h-pyrazolo[4,3-d]pyrimidin-7-one
112500-67-1 Pyrido[4,3-d]pyrimidine-2,4(1H,3H)-dione, 5-amino-1,3-diethyl-