Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, California, USA. lena.dolgikh@ucsf.edu|Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, California, USA. lena.dolgikh@ucsf.edu|Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, California, USA. lena.dolgikh@ucsf.edu|Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, California, USA. lena.dolgikh@ucsf.edu