((17-N-cyclobutylmethyl)morphinan-3-yl-(-14-hydroxyl-17-N-cyclobutylmethyl) morphinan-3-yl) decanedioate
((17-n-cyclobutylmethyl)morphinan-3-yl-(-14-hydroxyl-17-n-cyclobutylmethyl) morphinan-3-yl) decanedioate