Patent CA530770A successfully refreshed from Google Patents.
US4440692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted carbonic acid esters
Assignee: Individual
•
Filing: 1982-04-28
•
Granted: 1984-04-03
•
Expires: 2002-04-28
Abstract
Abstract Substituted carbonic acid esters and urethanes having the formula ##STR1## wherein Ad is a substituted or unsubstituted 1-adamantyl residue, R 1 and R 2 are saturated alkyl groups and X is chlorine, fluorine, azido or unsubstituted or substituted phenoxy. These compounds can be used in the synthesis of various peptides.
Inventors
- 👤 Hubert Kalbacher
- 👤 Wolfgang Voelter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:26
CPC Classifications
C; C07; C07K; C07K5/00; C07K5/04; C07K5/06; C07K5/06139; C07K5/06156; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/18; C07D209/20; C07K1/00; C07K1/06; C07K1/061; C07K1/063; C07K1/064; C07K1/068; C07K14/00; C07K14/435; C07K14/575; C07K14/655; C07K5/10; C07K5/1002; C07K5/1005; C07K5/1013
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
89 words
Compounds having the formula: ##STR13## wherein, Ad is the 1-adamantyl residue which is unsubstituted or substituted by alkyl groups of 1 to 8 carbon atoms, alkoxy groups of 1 to 8 carbon atoms, nitro groups, or halogen, R 1 and R 2 are saturated alkyl groups of 1 to 8 carbon atoms; and X is chlorine; fluorine; azido, phenoxy; phenoxy substituted in the benzene nucleus by fluorine, chlorine, bromine, iodine, nitro, alkoxy groups, or alkyl groups; N-oxysuccinimido; or residues having the formulae: ##STR14## wherein Ad has the above-identified meaning.
Claim 2
Dependent Claim
89 words
Compounds having the formula: ##STR13## wherein, Ad is the 1-adamantyl residue which is unsubstituted or substituted by alkyl groups of 1 to 8 carbon atoms, alkoxy groups of 1 to 8 carbon atoms, nitro groups, or halogen, R 1 and R 2 are saturated alkyl groups of 1 to 8 carbon atoms; and X is chlorine; fluorine; azido, phenoxy; phenoxy substituted in the benzene nucleus by fluorine, chlorine, bromine, iodine, nitro, alkoxy groups, or alkyl groups; N-oxysuccinimido; or residues having the formulae: ##STR14## wherein Ad has the above-identified meaning.
Claim 3
Dependent Claim
14 words
The compounds according to claim 1, wherein R 1 and R 2 are methyl.
Claim 4
Dependent Claim
39 words
The compounds according to claim 1, wherein X is phenoxy substituted in the benzene nucleus by fluorine, chlorine, bromine, iodine, nitro, alkoxy groups, or alkyl groups; N-oxysuccinimido; or residues having the formulae: ##STR15## wherein Ad has the above-indicated meaning.
Claim 5
Dependent Claim
35 words
The compounds according to claim 1, wherein X is chlorine, fluorine, phenoxy; phenoxy substituted in the benzene nucleus by fluorine, chlorine, bromine, iodine, nitro, alkoxy or alkyl groups; ##STR16## wherein Ad has the above-identified meaning.
Claim 6
Dependent Claim
10 words
The compounds accorrding to claim 4, of the formula: ##STR17##
Claim 7
Dependent Claim
14 words
Compounds having the formula: ##STR18## wherein X' represents fluorine, chlorine, bromine, azido or phenoxy.
Claim 8
Dependent Claim
14 words
Compounds having the formula: ##STR18## wherein X' represents fluorine, chlorine, bromine, azido or phenoxy.
Claim 9
Dependent Claim
6 words
The compound of the formula: ##STR19##
Claim 10
Dependent Claim
6 words
The compound of the formula: ##STR19##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-04-03 | 1987-10-03 | 1988-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-03 | 1991-10-03 | 1992-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-03 | 1995-10-03 | 1996-04-03 | $7700.00 | Window Closed / Lapsed |