Hong-ying Yang

Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request.

Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request. Supporting Information Filename Description chir70061-sup-0001-Supporting_Information.docWord document, 830 KB Figure S1: 1H-NMR spectrum of 1 in CD3OD (600 MHz). Figure S2: 13C-NMR spectrum of 1 in CD3OD (150 MHz). Figure S3: 1H-1H COSY spectrum of 1 in CD3OD (600 MHz).