[{"from": "human", "value": "Given InChI, write its compound. ->  InChI=1S/C21H22N2O4/c1-2-3-14-18(24)27-15-23-19(25)21(22-20(23)26,16-10-6-4-7-11-16)17-12-8-5-9-13-17/h4-13H,2-3,14-15H2,1H3,(H,22,26)\n"}, {"from": "gpt", "value": " 3-Pentanoyloxymethylphenytoin\n"}]