27281-85-2

Wy-11912 6α-[[(1-Amino-3-cyclopenten-1-yl)carbonyl]amino]penicillanic acid 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(1-amino-3-cyclopenten-1-yl)carbonyl]amino]-3,3-dimethyl-7-oxo-, [2S-(2α,5α,6β)]- (9CI)