US4496492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted phenylalkyl compounds
Assignee: Pharmacia and Upjohn Co
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Filing: 1983-07-19
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Granted: 1985-01-29
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Expires: 2003-07-19
Abstract
Abstract Novel antibacterially-active compound, 1,2,8,8a-cyclopropa[c]benzo[1,2-b:-4,3-b']dipyrol-4(5H)-one, prepared by a novel chemical process. This compound, as well as antibacterially-active intermediates, can be used to eradicate or control susceptible bacteria, for example, B. subtilis, K. pneumonia, S. lutea, S. aureus, and M. avium.
Inventors
- 👤 Wendell Wierenga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:39
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/10; C07C; C07C205/00; C07C205/27; C07C205/35; C07C205/36; C07C205/37; C07C309/00; C07C309/63; C07C309/64; C07C309/65; C07C309/66; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
A compound of the formula wherein R 1 is selected from the group consisting of --CH 3 , --CH 2 Ph, CH 2 ═CHCH 2 --, --CH 2 SCH 3 , --CH 2 OCH 3 , --CH 2 OCH 2 CH 2 OCH 3 , --CH 2 CCl 3 , and --CH 2 CH 2 Si(R 2 ) 3 ; R 2 and R 3 are hydrogen, alkyl of from 1 to 5 carbon atoms inclusive and phenyl; and X is selected from the group consisting of OSO 2 R 2 , Cl, Br and I with the proviso that R 2 in the OSO 2 R 2 moiety is other than hydrogen.
Claim 2
Dependent Claim
113 words
A compound of the formula wherein R 1 is selected from the group consisting of --CH 3 , --CH 2 Ph, CH 2 ═CHCH 2 --, --CH 2 SCH 3 , --CH 2 OCH 3 , --CH 2 OCH 2 CH 2 OCH 3 , --CH 2 CCl 3 , and --CH 2 CH 2 Si(R 2 ) 3 ; R 2 and R 3 are hydrogen, alkyl of from 1 to 5 carbon atoms inclusive and phenyl; and X is selected from the group consisting of OSO 2 R 2 , Cl, Br and I with the proviso that R 2 in the OSO 2 R 2 moiety is other than hydrogen.
Claim 3
Dependent Claim
6 words
A compound having the formula ##STR3##
Claim 4
Dependent Claim
6 words
A compound having the formula ##STR3##
References Cited (Backward Citations)
US3068266A
Cited
US4169888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-29 | 1988-07-30 | 1989-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-29 | 1992-07-30 | 1993-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-29 | 1996-07-30 | 1997-01-29 | $7700.00 | Window Closed / Lapsed |