by Abram, T.S., Böshagen, H., Butler, J.E., Cuthbert, N.J., Francis, H.P., Gardiner, P.J., Hartwig, W., Kluender, H.C., Norman, P., Meier, H., Rosentreter, U., Schlemmer, K.H., Tudhope, S.R., Taylor, W.A.
Published in Bioorganic & medicinal chemistry letters (01.08.1993)