| abstract |
Fluoroalkyl- and fluoroalkoxy-substituted benzyloxy-azaheterocyclic compounds of formula (I) and their salts are new: X1-X3 = N or CR<5>; R<1>, R<2> = H or halo; R<3>, R<4> = H, halo, 1-5C alkyl or 2-5C alkenyl; R<5> = 2-5C alkenediyl, halo, OR<6>, SR<6>, NHR<6>, -COOR<6> or COOH; 1-6C alkyl, 6-12C aryl or 6-12C aryl-1-3C alkyl (all optionally substituted by e.g. OR<6>, SR<6>, NO2, CN, NHR<6> or halo); R<6>, R<8> = H, 1-5C alkyl, 3-5C alkenyl or 6-12C aryl-1-3C alkyl; R<7> = 1-5C alkyl or 1-5C alkoxy (both substituted by 1 or more F or Cl); B = amino acid; D = 2-5C alkanediyl, 1-5C alkanediyl or -(CH2)n-Yp-(CH2)m-; E = O or S; Y = O, S or NR<8>; n, m = 0-3; o = 1-3; and p = 0 or 1. |