Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1992-03-20
1993-11-23
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
514253, 544238, 544279, A61K 31505, C07D47104
Patent
active
052644375
ABSTRACT:
The present invention relates to optionally substituted pyrido[2,3-d]pyrimidine-2,4(1H,3H)-diones or optionally substituted pyrido[2,3-d]pyrimidine-2(1H,3H)-ones, i.e., compounds of Formula I: ##STR1## wherein: Y is --CH.sub.2 -- or --C(O)--;
REFERENCES:
patent: 3984415 (1976-10-01), Noda et al.
patent: 4009166 (1977-02-01), Noda et al.
patent: 4880810 (1989-11-01), Lowe, III
Levin, et al., "An Alternative Procedure for the Aluminum-Mediated Conversion of Esters to Amides", Synth. Com. 12:989-993 (1982).
Alvarez Robert
Chin Ronnie L.
Devens Bruce H.
Wilhelm Robert S.
Krubiner Alan M.
Lowin David A.
Page Thurman K.
Syntex (U.S.A.) Inc.
Venkat Jyothsna
LandOfFree
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