[57] A reticle for use in a telescopic, optical gunsight or spotting scope, comprising: a substantially transparent disc (40) having an optical center (21) and an edge for mounting said disc in a housing, one or more aiming points positioned on said disc, and a ring (41) positioned between said optical center and said edge, said ring circumscribing said optical center and one or more of said aiming points, whereby said ring can be visually centered in a field of view for aiding users in aligning their line of sight through the gunsight or spotting scope.
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[21][11]
נגזרות אמידוקסים של פרופן חומצה קרבוקסילית, תהליך להכנתן ותכשירי רוקחות המכילים אותן
PROPENECARBOXYLIC ACID AMIDOXIME DERIVATIVES, A PROCESS FOR THE PREPARATION THEREOF AND PHARMACEUTICAL COMPOSITIONS CONTAINING THE SAME
wherein R represents a C1-20 alkyl group, a phenyl group which latter is optionally substituted by 1-3 substituent (s) – wherein the substituent is a halo atom and/or a C1-2 alkyl group and/or a C1-2 alkoxy group and/or an amino group and/or a (C1-4 alkyl) amino group and/or a di(C1-4 alkyl) amino group and/or a (C1-4 alkanoyl) amino group-, or R represents a 5- or 6-membered saturated or unsaturated heterocyclic group containing one or two nitrogen atom(s) or a sulphur atom as the heteroatom and said heterocyclic group is optionally fused with one or more benzene ring(s) and/or one or more heterocylic group(s), and R stands for a hydrogen atom, or
R4 and R5 represent, independently, a hydrogen atom, a C1-5 alkyl group, a C1-5 alkanoyl group or a phenyl group which latter is optionally substituted by 1-3 substituent(s) –wherein the substituent is a halo atom and/or a C1-2 alkyl group an/dor a C1-2alkoxy group-, or
R4 and R5 form together with the adjacent nitrogen atom a 5- or 6-membered saturated or unsaturated heterocyclic group that may contain a further nitrogen atom and/or oxygen atom and/or a sulphur atom as the heteroatom and can be fused with a benzene ring, and the heterocyclic group and/or the benzene ring may bear one or two substituent(s) wherein the substituent is a halo atom and/or a C1-2 alkyl group and/or a C1-2 alkoxy group,
R1 forms together with R2 a carbonyl group or a thiocarbonyl group the carbon atom of which is bound to the oxygen atom adjacent to R1 and to the nitrogen atom adjacent to R2, and
R3represents a hydrogen atom, a halo atom, a hydroxy group, a C1-5 alkoxy group, a C1-5 alkylthio group, a C1-20alkanoyloxy group, a C3-22 alkenoyloxy group containing one or more double bond(s), a methylsulfonyloxy group, a benzenesulfonyloxy group or a toluenesulfonyloxy group, or
R2 is a hydrogen atom and
R1 forms together with R3 a valence bond between the oxygen atom adjacent to R1 and the carbon atom adjacent to R3, furthermore N-oxides and/or geometrical isomers and/or optical isomers and/or pharmaceutically suitable acid addition salts and/or quaternary derivatives thereof.