Patent ID: 6120703
Filing Date: 2000-09-19
Classification: C07D,C07F,C09K

Abstract:
A 6-fluorophenanthridine derivative of the formula (I) ##STR22## in which the symbols have the following meanings: R.sup.1 and R.sup.2 are identical or different and are a straight-chain or branched alkyl radical (with or without an asymmetric carbon atom) having 1 to 16 carbon atoms, whereb1) one or two nonadjacent and nonterminal CH.sub.2 groups can be replaced by --O--, --CO--O--, --O--CO--, --O--CO--O-- or --Si(CH.sub.3).sub.2 --, and/orb2) one CH.sub.2 group can be replaced by 1,4-phenylene or trans-1,4-cyclohexylene, and/orb3) one or more H atoms can be replaced by --F, and/orb4) the terminal CH.sub.3 group can be replaced by one of the following chiral groups (optically active or racemic): ##STR23## R.sup.3 is a) hydrogen,b) a straight-chain or branched alkyl radical (with or without an asymmetric carbon atom) having 1-14 carbon atoms, whereb1) one nonterminal CH.sub.2 group can be replaced by --O--, and/orc) R.sup.4 and R.sup.5 together are alternatively --(CH.sub.2).sub.4 -- or --(CH.sub.2).sub.5 --, if they are attached to an oxirane, dioxolane, tetrahydrofuran, tetrahydropyran, butyrolactone or valerolactone system.