Synonyms: 1-Piperidinecarboxylic acid, 3-[4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-, 1,1-dimethylethyl ester, (3R)- (ACI), 1,1-Dimethylethyl (3R)-3-[4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinecarboxylate (ACI), (R)-3-[4-Amino-3-(4-phenoxy-phenyl)-pyrazolo[3,4-d]pyrimidin-1-yl]-piperidine-1-carboxylic acid tert-butyl ester, (R)-tert-Butyl 3-[4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]piperidine-1-carboxylate