(4r,4ar,7r,7ar,12bs)-7-azido-3-methyl-2,4,4a,5,6,7,7a,13-octahydro-1h-4,12-methanobenzofuro[3,2-e]isoquinoline-9-ol;(2r,3r)-2,3-dihydroxybutanedioic Acid