1 23 Medicinal Chemistry Research ISSN 1054-2523 Volume 28 Number 12 Med Chem Res (2019) 28:2270-2278 DOI 10.1007/s00044-019-02455-w Identification of prodigious and under- privileged structural features for RG7834 analogs as Hepatitis B virus expression inhibitor Vijay H. Masand, Nahed N. E. El-Sayed, Vesna Rastija, Mithilesh M. Rathore & Maja Karnaš