- Hydrophobic acetal and ketal derivatives of mannopeptimycin-alpha and desmethylhexahydromannopeptimycin-alpha: semisynthetic glycopeptides with potent activity against Gram-positive bacteria. Dushin, R.G., Wang, T.Z., Sum, P.E., He, H., Sutherland, A.G., Ashcroft, J.S., Graziani, E.I., Koehn, F.E., Bradford, P.A., Petersen, P.J., Wheless, K.L., How, D., Torres, N., Lenoy, E.B., Weiss, W.J., Lang, S.A., Projan, S.J., Shlaes, D.M., Mansour, T.S. J. Med. Chem. (2004)