Buprenorphine EP Impurity I

Chemical Name: 17-(cyclopropylmethyl)-4″,4″,5″,5″-tetramethyl-4″,5″dihydro-(7βH)-6α,14-ethano-(5βH)-difurano[2′,3′,4′,5′:4,12,13,5;2″,3″:6,7]-14α-morphinan-3-ol (as per EP)

Smile: OC1=C2O[C@]3([H])C4(CCN5CC6CC6)C2=C(C=C1)C[C@]5([H])C47CCC3(OC(C)(C)C8(C)C)[C@]8([H])C7