5,6-disubstituted-3-pyridylmethyl ammonium halide compounds usef

Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system

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544217, 544218, 544219, 544234, 544235, 544236, 544238, 544244, 544250, 544275, 544279, 544280, 544284, 544298, 544309, 544333, 544344, 544345, 544349, 544350, 544365, 546250, 546255, 546261, 546262, 546114, 546116, 546113, 546321, 546147, 546174, C07D25100, C07D21304, C07D40100

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055458351

ABSTRACT:
There are provided 5,6-disubstituted-3-pyridylmethyl ammonium halide compounds, a method for the preparation thereof and the use thereof for the preparation of 5-(substituted methyl)-2,3-pylidinedicarboxylic acids.

REFERENCES:
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patent: 5034395 (1991-07-01), Tomado et al.
patent: 5063237 (1991-11-01), Cooper et al.
patent: 5064847 (1991-11-01), Archibald et al.
patent: 5125961 (1992-06-01), Duinbouh et al.
patent: 5137889 (1992-08-01), Tamado et al.
patent: 5262384 (1993-11-01), Homprecht et al.
Chemical Abstracts. vol. 112, No. 0, Abstract No. 76.991a, Feb. 26, 1990.

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