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- [3] STUDIES ON PYRAZOLO[3,4-D]PYRIMIDINE DERIVATIVES .11. 1-PHENYL-1H-PYRAZOLO[3,4-D]PYRIMIDINE-4-CARBONITRILE YAKUGAKU ZASSHI-JOURNAL OF THE PHARMACEUTICAL SOCIETY OF JAPAN, 1978, 98 (07): : 891 - 897
- [5] STUDIES ON PYRAZOLO[3,4-D]PYRIMIDINE DERIVATIVES .12. ON 1-PHENYL-H-1-PYRAZOLO[3,4-D]PYRIMIDINE-4-CARBOXYLIC ACID YAKUGAKU ZASSHI-JOURNAL OF THE PHARMACEUTICAL SOCIETY OF JAPAN, 1978, 98 (09): : 1274 - 1278
- [10] STUDIES ON PYRAZOLO[3,4-D]PYRIMIDINE DERIVATIVES .2. REACTION OF 4-CHLORO-1-METHYL-1H-PYRAZOLO[3,4-D]PYRIMIDINE WITH KETONE CARBANION YAKUGAKU ZASSHI-JOURNAL OF THE PHARMACEUTICAL SOCIETY OF JAPAN, 1974, 94 (10): : 1191 - 1195