PROBLEM TO BE SOLVED: To provide a novel aminoglycoside antibiotic having antibacterial activity against both Gram-positive bacteria and Gram-negative bacteria, and particularly effective against Gram-positive bacteria and Gram-negative bacteria showing multidrug resistance. A compound represented by the following general formula (I), a pharmaceutically acceptable salt thereof, or a solvate thereof. [Selection diagram] None【課題】グラム陽性菌およびグラム陰性菌の双方に対して抗菌活性を有し、特に、多剤耐性を示すグラム陽性菌およびグラム陰性菌に有効な新規アミノグリコシド抗生物質の提供。【解決手段】以下の一般式（Ｉ）で表される化合物、またはそれらの薬学的に許容可能な塩、またはそれらの溶媒和物。【選択図】なし
