Several aldose-containing compounds, including di-(b-D-glucopyranosyl)-bis-diphenylsilyl-2,2,4,4-tetraphenylcyclodisilazane, di-(b-D-glucopyranosyl)-bis-dimethylsily-2,2,4,4-tetramethylcyclodisilazane, 1-b-(2,3,4,6-tetra-O-acetyl)-D-glucopyranosyl-2-pyrrolidone, and -e-caprolactam were synthesized and examined for biological activity. The synthesized compounds suppress the growth and development of phytopathogenic microbes. The influence of various fragments on the antibacterial activity of compounds is established.

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Die Lactame (I) reagieren m.it Dimethoxy‐methylchlormethyl‐silan (II) zu den silylierten Lactamen (III).

Pyrrolidon (I) bzw. Caprolactam (IV) reagieren mit Chlormethylsilanen (II) und (VI) in Gegenwart von Kaliumcarbonat zu den N‐Silylmethyl‐lactamen (III) bzw. (V) und (VII).

Reaction of acrylamide (I) with the diorganylchlorosilanes (II) produces the silalactams (III), together with the disilabislactams (IV) as by‐products.