Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Patent
1988-02-02
1991-03-12
Wax, Robert A.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
514212, 514337, 540524, 546136, 548525, C07D40504, A61K 3140, A61K 31435, A61K 3155
Patent
active
049993712
ABSTRACT:
3,4-Dihydro-2H-benzo[b]pyrans of the formula I ##STR1## are described, in which R.sup.1 is H, OH, (C.sub.1 -C.sub.2)-alkoxy, (C.sub.1 -C.sub.2)-alkyl or NR.sup.4 R.sup.5,
REFERENCES:
patent: 4251537 (1981-02-01), Evans
patent: 4363811 (1982-12-01), Evans
patent: 4446113 (1984-05-01), Evans
patent: 4782083 (1988-11-01), Cassidy
Pine, Organic Chemistry, 4th Ed., pp. 208-209.
Englert Heinrich C.
Lang Hans-Jochen
Mania Dieter
Scholkens Bernward
Hoechst Aktiengesellschaft
Tsung F.
Wax Robert A.
LandOfFree
Substituted 3,4-dihydro-2H-benzopyrans, processes for their prep does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Substituted 3,4-dihydro-2H-benzopyrans, processes for their prep, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Substituted 3,4-dihydro-2H-benzopyrans, processes for their prep will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-448848