6-Hydroxy-6-(hydroxymethyl)-8-(2,3,4-trimethoxyphenyl)-7,8-dihydro-6H-[1,3]dioxolo[4,5-g]chromene-7-carboxylic acid compound with 5a-hydroxy-9-(2,3,4-trimethoxyphenyl)-5a,6,8a,9-tetrahydro-8H-[1,3]dio\txolo[4,5-g]furo[3,4-b]chromen-8-one (1:1) AIDS-156432 AIDS156432 NSC619695