ISOMERIC PYRAZOLO(4,3-D)PYRIMIDINEDIONES

[1] ASSIGNMENT OF N-METHYL HYDROGEN NMR PEAKS OF CAFFEINE [J]. JOURNAL OF PHARMACEUTICAL SCIENCES, 1964, 53 (08) : 962 - &

[2] BEHREND R, 1888, ANN, V245, P213

[3] BHACCA NS, VARIAN SPECTRA CATAL, V1

[4] Oximes of omicron-amino-benzo and acetophenon [J]. BERICHTE DER DEUTSCHEN CHEMISCHEN GESELLSCHAFT, 1927, 60 : 1736 - 1748

[5] PYRIMIDO[5,4D][1,2,3]TRIAZINES [J]. JOURNAL OF ORGANIC CHEMISTRY, 1963, 28 (05) : 1329 - &

[6] POTENTIAL PURINE ANTAGONISTS .2. SYNTHESIS OF SOME 7-SUBSTITUTED PYRAZOLO(4,3-D)PYRIMIDINES AND 5,7-SUBSTITUTED PYRAZOLO[4,3-D]PYRIMIDINES [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1956, 78 (11) : 2418 - 2422

[7] POTENTIAL PURINE ANTAGONISTS .9. FURTHER STUDIES OF SOME 4,6-DISUBSTITUTED PYRAZOLO[3,4-D]PYRIMIDINES [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1957, 79 (24) : 6407 - 6415

[8] NEW SYNTHESES BASED ON 5-AMINOPYRIMIDINES [J]. JOURNAL OF THE CHEMICAL SOCIETY, 1952, (SEP): : 3448 - 3464

[9] 1-2-4-6-TETRA-AZAINDENES AND 1-4-6-TRIAZAINDAN-2-ONES FROM 5-AMINOPYRIMIDINES [J]. JOURNAL OF THE CHEMICAL SOCIETY, 1954, (DEC): : 4116 - 4126

[10] HEILMITTELCHEMISCHE STUDIEN IN DER HETEROCYCLISCHEN REIHE .34. PYRAZOLO-PYRIMIDINE .5. EINE NEUE SYNTHESE VON PYRAZOLO[3,4-D]PYRIMIDINEN MIT CORONARERWEITERNDEN EIGENSCHAFTEN [J]. HELVETICA CHIMICA ACTA, 1962, 45 (05) : 1620 - &

[1] ASSIGNMENT OF N-METHYL HYDROGEN NMR PEAKS OF CAFFEINE [J]. JOURNAL OF PHARMACEUTICAL SCIENCES, 1964, 53 (08) : 962 - &

[2] BEHREND R, 1888, ANN, V245, P213

[3] BHACCA NS, VARIAN SPECTRA CATAL, V1

[4] Oximes of omicron-amino-benzo and acetophenon [J]. BERICHTE DER DEUTSCHEN CHEMISCHEN GESELLSCHAFT, 1927, 60 : 1736 - 1748

[5] PYRIMIDO[5,4D][1,2,3]TRIAZINES [J]. JOURNAL OF ORGANIC CHEMISTRY, 1963, 28 (05) : 1329 - &

[6] POTENTIAL PURINE ANTAGONISTS .2. SYNTHESIS OF SOME 7-SUBSTITUTED PYRAZOLO(4,3-D)PYRIMIDINES AND 5,7-SUBSTITUTED PYRAZOLO[4,3-D]PYRIMIDINES [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1956, 78 (11) : 2418 - 2422

[7] POTENTIAL PURINE ANTAGONISTS .9. FURTHER STUDIES OF SOME 4,6-DISUBSTITUTED PYRAZOLO[3,4-D]PYRIMIDINES [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1957, 79 (24) : 6407 - 6415

[8] NEW SYNTHESES BASED ON 5-AMINOPYRIMIDINES [J]. JOURNAL OF THE CHEMICAL SOCIETY, 1952, (SEP): : 3448 - 3464

[9] 1-2-4-6-TETRA-AZAINDENES AND 1-4-6-TRIAZAINDAN-2-ONES FROM 5-AMINOPYRIMIDINES [J]. JOURNAL OF THE CHEMICAL SOCIETY, 1954, (DEC): : 4116 - 4126

[10] HEILMITTELCHEMISCHE STUDIEN IN DER HETEROCYCLISCHEN REIHE .34. PYRAZOLO-PYRIMIDINE .5. EINE NEUE SYNTHESE VON PYRAZOLO[3,4-D]PYRIMIDINEN MIT CORONARERWEITERNDEN EIGENSCHAFTEN [J]. HELVETICA CHIMICA ACTA, 1962, 45 (05) : 1620 - &