Selective aromatase inhibiting 4(5)-imidazoles
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United States of America Patent
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Sep 24, 1996
Grant Date -
N/A
app pub date -
May 9, 1994
filing date -
Jun 18, 1991
priority date (Note) -
Expired
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Abstract
New 4(5)-imidazole derivatives of formula (Ia) and (Ib) wherein one of R.sub.1 and R.sub.2 is CN and the other one is H, CH.sub.3, OCH.sub.3, NO.sub.2, NH.sub.2, CN, CF.sub.3, CHF.sub.2, CH.sub.2 F or halogen; R' is H or (II) where R.sub.3 is H, CH.sub.3 or halogen; R.sub.4 is H and R.sub.5 is H or R.sub.4 and R.sub.5 together form a bond, n is 1 or 2 and y is 0 to 2, their stereoisomers and their non-toxic pharmaceutically acceptable acid addition salts exhibit selective aromatase inhibiting properties, compared with their desmolase inhibiting properties. The compounds of the invention are valuable in the treatment of estrogen dependent diseases, e.g. breast cancer or benign prostatic hyperplasia (BPH).
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