US3919239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxazolidine derivatives
Assignee: Otsuka Pharmaceutical Co Ltd
•
Filing: 1973-12-03
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Granted: 1975-11-11
•
Expires: 1993-12-03
Abstract
Abstract wherein R1, R2 and Y are hereinafter defined, having a Beta adrenergic blocking activity and a process for producing the above oxazolidine derivatives are disclosed. Oxazolidine derivatives represented by the formula (I) D R A W I N G
Inventors
- 👤 Kazuyuki Nakagawa
- 👤 Shiro Yoshizaki
- 👤 Nanami Murakami
- 👤 Hideo Mori
- 👤 Michiaki Tominaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:43
CPC Classifications
C; C07; C07D; C07D413/00; C07D413/02; C07D413/12
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
9 words
OXAZOLIDINE AND OXAZOLIDINONE-(2) COMPOUNDS REPRESENTED BY THE FORMULA (1):
Claim 2
Dependent Claim
9 words
OXAZOLIDINE AND OXAZOLIDINONE-(2) COMPOUNDS REPRESENTED BY THE FORMULA (1):
Claim 3
Dependent Claim
5 words
3-tert-Butyl-5-((3,4-dihydro-5-carbostyril)oxymethyl)-oxazolidine, according to claim 1.
Claim 4
Dependent Claim
5 words
5-((3,4-Dihydro-5-carbostyril)oxymethyl)-3-isopropyl-oxazolidine, according to claim 1.
Claim 5
Dependent Claim
5 words
3-tert-Butyl-5-((3,4-dihydro-5-carbostyril)oxymethyl)-2-methyl-oxazolidine, according to claim 1.
Claim 6
Dependent Claim
5 words
3-tert-Butyl-5-((3,4-dihydro-5-carbostyril)oxymethyl)-2-phenyl-oxazolidine, according to claim 1.
Claim 7
Dependent Claim
5 words
5-((1-Ethyl-3,4-dihydro-5-carbostyril)oxymethyl)-3-isopropyloxazolidine, according to claim 1.
Claim 8
Dependent Claim
6 words
3-tert-Butyl-2-ethyl-5-((1-ethyl-3,4-dihydro-5-carbostyril)oxy-methyl) -oxazolidine, according to claim 1.
Claim 9
Dependent Claim
5 words
3-tert-Butyl-5-((1-benzyl-3,4-dihydro-5-carbostyril)-oxymethyl)-oxazolidine, according to claim 1.
Claim 10
Dependent Claim
6 words
3-tert-Butyl-5-((1-methyl-3,4-dihydro-carbostyril)oxymethyl)-2 -propyloxazolidine, according to claim 1.
Claim 11
Dependent Claim
5 words
5-((3,4-Dihydro-5-carbostyril)oxymethyl)-3-isopropyl-2-phenyl-oxazolidine, according to claim 1.
Claim 12
Dependent Claim
5 words
3-tert-Butyl-5-((3,4-dihydro-5-carbostyril)oxymethyl)-2-propyloxazolidine, according to claim 1.
Claim 13
Dependent Claim
5 words
2-Ethyl-5-((3,4-dihydro-5-carbostyril)oxymethyl)-3-isopropyl-oxazolidine, according to claim 1.
Claim 14
Dependent Claim
5 words
3-tert-Butyl-2-ethyl-5-((3,4-dihydro-5-carbostyril)oxymethyl)oxazolidine, according to claim 1.
Claim 15
Dependent Claim
5 words
3-tert-Butyl-5-((1-allyl-3,4-dihydro-5-carbostyril)oxymethyl)oxazolidine, according to claim 1.
Claim 16
Dependent Claim
5 words
3-tert-Butyl-5-((1-methyl-3,4-dihydro-5-carbostyril)-oxymethyl)oxazolidine, according to claim 1.
Claim 17
Dependent Claim
5 words
3-tert-Butyl-5-((3,4-dihydro-5-carbostyril)oxymethyl)-oxazolidinone-(2), according to claim 1.
Claim 18
Dependent Claim
5 words
5-((3,4-Dihydro-5-carbostyril)oxymethyl)-3-isopropyloxazolidinone-(2), according to claim 1.
Claim 19
Dependent Claim
5 words
3-tert-Butyl-5-((1-benzyl-3,4-dihydro-5-carbostyril)-oxymethyl)oxazolidinone-(2), according to claim 1.
Claim 20
Dependent Claim
6 words
5-((1-Ethyl-3,4-dihydro-5-carbostyril)oxymethyl)-3-isopropyloxazolidinone -(2), according to claim 1.
Claim 21
Dependent Claim
6 words
3-tert-Butyl-5-((1-methyl-3,4-dihydro-5-carbostyril)oxymethyl)oxazolidinone -(2), according to claim 1.
Claim 22
Dependent Claim
6 words
5-((1-Allyl-3,4-dihydro-5-carbostyril)oxymethyl)-3-tert-butyloxazolidinone -(2), according to claim 1.
Claim 23
Dependent Claim
6 words
3-tert-Butyl-5-((1-ethyl-3,4-dihydro-5-carbostyril)-oxymethyl)oxazolidinone -(2), according to claim 1.
References Cited (Backward Citations)
US3340266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |