Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1987-07-16
1989-02-28
Sneed, H. M. S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
540 41, 2603974, 2603973, 2603975, 514177, 514178, C07J 3300, C07J 100
Patent
active
048087106
ABSTRACT:
A novel class of steroids having pregnancy-terminating and/or pregnancy-preventing activity and a very low antiglucocorticoid activity have been found. The compounds have the general formula: ##STR1## wherein R.sub.1 and R.sub.2 each separately represent H or a (1-4 C) hydrocarbon radical or together represent a (2-6 C) hydrocarbon radical, R.sub.3 represents H or a (1-4 C) hydrocarbon radical, optionally having an OH substituent, R.sub.4 represents OH or an ester or ether group, or together with R.sub.3 represents O or a heterocyclic ring system containing O, and wherein the broken line indicates an optionally present double bond between the carbon atoms at positions 9 and 10 of the steroid skeleton.
REFERENCES:
patent: 1255345 (1971-12-01), Baran
patent: 3074978 (1963-01-01), Nomine et al.
patent: 3100204 (1963-09-01), Oberster et al.
patent: 3177205 (1965-04-01), Bowers et al.
patent: 3494942 (1970-02-01), Miki et al.
patent: 3725439 (1973-04-01), Patchett et al.
patent: 4167517 (1979-09-01), Ponsold et al.
patent: 4386085 (1983-05-01), Teutsch et al.
patent: 4447424 (1984-05-01), Teutsch et al.
patent: 4519946 (1985-05-01), Teutsch et al.
patent: 4634695 (1987-01-01), Torelli et al.
Keana J. F. W., "Protection of Carbonyl & Hydroxyl Groups" in Steroid Reactions, (1963), Holden-Day, Inc., (U.S.A.), pp. 1-5, 30, 34, 35.
Chemical Abstracts, vol. 66, No. 5, Jan. 30, 1967, p. 1828, Item 18810m.
Chemical Abstracts, vol. 66, Oct. 31, 1967, Item 18820q.
de Jongh Hendrik P.
van den Heuvel Martinus J.
Akzo N.V.
Blackstone William M.
Saba J.
Sneed H. M. S.
LandOfFree
18-Phenyloestrane derivatives does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with 18-Phenyloestrane derivatives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 18-Phenyloestrane derivatives will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1368330