S. Hanessian et al., TRICYCLIC BETA-LACTAMS - TOTAL SYNTHESIS AND ANTIBACTERIAL ACTIVITY OF 5-ALPHA-METHOXY-TRIBACTAMS AND 5-BETA-METHOXY-TRIBACTAMS, Bioorganic & medicinal chemistry letters, 5(21), 1995, pp. 2535-2540
The total synthesis of the tricyclic beta-lactams, ''5 alpha- and 5 be
ta-methoxy tribactams'', positional isomers of the Glare 4a-methoxy-tr
ibactam is described and preliminary biological evaluation is reported
.