Koichi Watashi, Ann Sluder, Takuji Daito, Satoko Matsunaga, Akihide Ryo, Shushi Nagamori, Masashi Iwamoto, Syo Nakajima, Senko Tsukuda, Katyna Borroto‐Esoda, Masaya Sugiyama, Yasuhito Tanaka, Yoshikatsu Kanai, Hiroyuki Kusuhara, Masashi Mizokami, Takaji Wakita – 21 December 2013 – Chronic hepatitis B virus (HBV) infection is a major public health problem worldwide. Although nucleos(t)ide analogs inhibiting viral reverse transcriptase are clinically available as anti‐HBV agents, emergence of drug‐resistant viruses highlights the need for new anti‐HBV agents interfering with other targets.