AIDS-212734 AIDS212734 Carbonic acid, ethenyl 4-[(5R,5aR,8aR,9S)-5,5a,6,8,8a,9-hexahydro-9-hydroxy-6-oxofuro[3',4':6,7]naphtho[2,3-d]-1,3-dioxol-5-yl]-2,6-dimethoxyphenyl ester