| 摘要 |
Title cpds of formula (I) and when AC is H, their acid addn salts: (where n is 1-4; Alk is not >4C alkyl or -CH2CH2OAC1; Ac and Ac1 are both H or both carboxylic acyl; R1 is not >18C satd or is not >10C unsatd aliphatic hydrocarbon, >11C aromatic hydrocarbyl or is not >8C oxa or thiacarbocyclic aromatic hydrocarbyl; and XR3 is H or residue in which X is O or S and R3 is H, carboxylic acyl, lower alkyl, alkenyl, cycloalkyl, cycloalkenyl, alkoxyalkyl or alkylthioalkyl, or Ph, Bz, furyl, furfuryl, thienyl or thenyl; when X is O and R3 is alkyl, R1 and R3 can be joined together so as to form a is not >5C oxacycloalkyl residue with 3-6 ring atoms) may be N-acylated with an L-2-pyrrolidinecarboxylic acid to give antibacterially active lincomycin analogues. The free bases of (I; Ac=Ac1-H) can be used as buffers or antacids; they may be used for modifying polyurethane resins, and their thiocyanates form corlrosion-inhibiting condensation prods with HCHO. The fluolsilicate salts are useful as mothproofing agents, and the fluoroarsenates and hexafluorophosphates are useful as pesticides. |
