(EN) INTERMEDIATE IN THE PROCESS FOR PREPARING COMPOUND HAVING HIV INTEGRASE INHIBITORY ACTIVITYA crystal of a compound shown by formula (U2) or a solvate thereof: [Chemical formula 44](wherein Me is methyl, and Bn is benzyl)which has peaks in a powder X-ray diffraction spectrum at diffraction angle (29): 7.3° + 0.2°, 14.4° ±0.2°, 16.1° ± 0.2°, 18.4° ± 0.2°, 22.3° ± 0.2° and 23.1° ± 0.2°.