Patent US4070537A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4070537A Expired / Lapsed US ⏱️ 0.0 years remaining

17-Oxo-17-phenyl-prostaglandins

Assignee: Ono Pharmaceutical Co Ltd
•
Filing: 1976-04-22
•
Granted: 1978-01-24
•
Expires: 1996-04-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention relates to 17-oxo-17-phenyl-prostaglandins having the following structural formula: ##STR1## wherein A represents a grouping of the formula: ##STR2## X represents ethylene or cis-vinylene, Y represents ethylene or trans-vinylene, R 1 represents a hydrogen atom or a methyl or ethyl group, R 2 and R 3 , which may be the same or different, each represent a hydrogen or halogen atom, a trifluoromethyl group or a straight- or branched-chain alkyl group containing from 1 to 3 carbon atoms, and R 4 represents a hydrogen atom or a straight- or branched-chain alkyl group containing from 1 to 12 carbon atoms and cyclodextrin clathrates of such acids and esters, and when R 4 represents a hydrogen atom, non-toxic salts thereof. These compounds exhibit characteristic prostaglandin activity, e.g., abortifacient activity, stimulation activity on uterine contraction, and so on.

Inventors

  • 👤 Masaki Hayashi
  • 👤 Seiji Kori
  • 👤 Hajimu Miyake
  • 👤 Kimiichiro Matsumoto

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 20:58
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/77; C07D307/93; C07D307/935; C07C; C07C405/00

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 106 words
A compound of the formula: ##STR20## wherein X represents ethylene or cis-vinylene, Y represents ethylene or trans-vinylene, R 1 represents a hydrogen atom or a methyl or ethyl group, R 2 and R 3 , which may be the same or different, each represent a hydrogen or halogen atom, a trifluoromethyl group or a straight- or branched-chain alkyl group containing from 1 to 3 carbon atoms, and R 4 represents a hydrogen atom or a straight- or branched-chain alkyl group containing from 1 to 12 carbon atoms and cyclodextrin clathrates of such acids and esters, and when R 4 represents a hydrogen atom, non-toxic salts thereof.
Claim 2
Dependent Claim 106 words
A compound of the formula: ##STR20## wherein X represents ethylene or cis-vinylene, Y represents ethylene or trans-vinylene, R 1 represents a hydrogen atom or a methyl or ethyl group, R 2 and R 3 , which may be the same or different, each represent a hydrogen or halogen atom, a trifluoromethyl group or a straight- or branched-chain alkyl group containing from 1 to 3 carbon atoms, and R 4 represents a hydrogen atom or a straight- or branched-chain alkyl group containing from 1 to 12 carbon atoms and cyclodextrin clathrates of such acids and esters, and when R 4 represents a hydrogen atom, non-toxic salts thereof.
Claim 3
Dependent Claim 13 words
A compound according to claim 1 which is 17-oxo-17-phenyl-18,19,20-trinor-PGF 2 α methyl ester.
Claim 4
Dependent Claim 13 words
A compound according to claim 1 which is 17-oxo-17-(4-chlorophenyl)-18,19,20-trinor-PGF 2 α methyl ester.
Claim 5
Dependent Claim 13 words
A compound according to claim 1 which is 17-oxo-17-(3-chlorophenyl)-18,19,20-trinor-PGF 2 α methyl ester.
Claim 6
Dependent Claim 11 words
A compound according to claim 1 which is 17-oxo-17-(4-chlorophenyl)-18,19,20-trinor-PGF 2 α.
Claim 7
Dependent Claim 11 words
A compound according to claim 1 which is 17-oxo-17-(3-chlorophenyl)-18,19,20-trinor-PGF 2 α.

References Cited (Backward Citations)

DE2605584A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-01-23 1981-07-25 1982-01-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-01-23 1985-07-25 1986-01-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-01-23 1989-07-25 1990-01-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag