Methylenebisphosphonic acid derivatives
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United States of America Patent
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Dec 4, 2001
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N/A
app pub date -
Jul 12, 2000
filing date -
Oct 20, 1997
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Abstract
The object of the invention are novel halogen substituted methylenebisphosphonic acid anhydrides, ester anhydrides, amide anhydrides, and ester amide anhydrides, processes for the preparation of these novel compounds, as well as pharmaceutical preparations comprising these novel compounds.
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