9,13-Epoxycyclohepta(7,8)naphtho(2,3-d)furo(3,2-b)pyran-2,6,14(9H)-trione, 11-(dimethylamino)-3,3a,5,10,11,12,13,14b-octahydro-7,10-dihydroxy-5,9-dimethyl-, hydrochloride, (3aR-(3aalpha,5alpha,9beta,10beta,11alpha,13beta,14balpha))-