2H-Oxocin-2-methanol, 7-bromo-8-ethyl-3,6,7,8-tetrahydro-alpha-2-penten-4-ynyl-, acetate, (2R-(2alpha(R*(E)),7beta,8alpha))- (9CI) 2H-Oxocin-2-methanol, 7-bromo-8-ethyl-3,6,7,8-tetrahydro-alpha-2-penten-4-ynyl-, acetate, (E)-(alphaR,2R,7S,8R)- (8CI) 3442-58-8 7-Bromo-8-ethyl-3,6,7,8-tetrahydro-alpha-2-penten-4-ynyl-2H-oxocin-2-methanol acetate Laurencin NSC 122763