File Name : fig.1s.tif Caption : hplc-ms chromatogram of compound 1. File Name : fig.2s.tif Caption : hplc-ms chromatogram of compound 2. File Name : fig.3s.tif Caption : ¹h-nmr spectrum of compound 1 (500 mhz, pyridine-d₅). File Name : fig.4s.tif Caption : ¹³c-nmr spectrum of compound 1 (125 mhz, pyridine-d₅). File Name : fig.5s.tif Caption : hsqc spectrum of compound 1. File Name : fig.6s.tif Caption : hmbc spectrum of compound 1. File Name : fig.7s.tif Caption : ¹³c-nmr spectrum of compound 2 (125 mhz, pyridine-d₅).