(3,6beta,14-tri-OH)(6alpha-carboxy)-isomer of 3,6,14-trihydroxy-6-(2-carboxyallyl)-17-(cyclopropylmethyl)morphinan gamma-lactone 4,5-epoxide
(3,6beta,14-tri-oh)(6alpha-carboxy)-isomer of 3,6,14-trihydroxy-6-(2-carboxyallyl)-17-(cyclopropylmethyl)morphinan gamma-lactone 4,5-epoxide