US4442284A
Expired / Lapsed
US
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Chemical compounds, aminoacid attached to glycoside
Assignee: Siemens Healthcare Diagnostics GmbH Germany
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Filing: 1982-02-22
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Granted: 1984-04-10
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Expires: 2002-02-22
Abstract
Abstract The text describes compounds having the formula I ##STR1## wherein R 1 denotes a hydrogen atom or an acyl or benzyl protective group, R 1 and R 2 together denote an alkylidene or benzylidene protective group, R 2 and R 3 denote hydrogen atoms or acyl or benzyl protective groups or a β-galactopyranosyl radical or a 2,3,4,6-tetra-0-acetylated derivative thereof, R 4 denotes an azido, amino or acetamido group, R 5 denotes --0--alkyl, --0--aryl, --0--benzyl, --NHNH 2 , --N 3 or --OH and n denotes 1 to 10, and also a process for their preparation and their use as antigens or immunoadsorbents.
Inventors
- 👤 Cenek Kolar
- 👤 Hans Paulsen
- 👤 Jean C. Jacquinet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:28
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; C07H3/00; C07H3/04; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/55
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
75 words
A compound of the formula ##STR11## wherein R 1 taken alone is hydrogen, acetyl, benzoyl, or benzyl, R 2 and R 3 taken alone are hydrogen, acetyl, benzoyl, benzyl, beta-D-galactopyranosyl, or 2,3,4,6-tetra-O-acetylated beta-D-galactopyranosyl, R 1 and R 2 taken together are alkylidene or benzylidene, R 4 is azido, amino, or acetamido, R 5 is --OCH 3 , --O--benzyl, --NHNH 2 , --N 3 , or --OH, and n is an integer from 1 to 10.
Claim 2
Dependent Claim
75 words
A compound of the formula ##STR11## wherein R 1 taken alone is hydrogen, acetyl, benzoyl, or benzyl, R 2 and R 3 taken alone are hydrogen, acetyl, benzoyl, benzyl, beta-D-galactopyranosyl, or 2,3,4,6-tetra-O-acetylated beta-D-galactopyranosyl, R 1 and R 2 taken together are alkylidene or benzylidene, R 4 is azido, amino, or acetamido, R 5 is --OCH 3 , --O--benzyl, --NHNH 2 , --N 3 , or --OH, and n is an integer from 1 to 10.
Claim 3
Dependent Claim
49 words
A compound as in claim 1 wherein R 1 is hydrogen, acetyl, or benzoyl, R 1 and R 2 taken together are isopropylidene or benzylidene, and R 5 is --OCH 3 , --NHNH 2 , --N 3 , or --OH, and n is an integer from 4 to 7.
Claim 4
Dependent Claim
28 words
A compound as in claim 1 wherein R 1 , R 2 , and R 3 are hydrogen, R 4 is acetamido, and n is 4 or 7.
Claim 5
Dependent Claim
32 words
A compound as in claim 1 wherein R 1 is hydrogen, R 2 and R 3 are beta-D-galactopyranosyl, R 4 is acetamido, R 5 is --OCH 3 , and n is 4.
Claim 6
Dependent Claim
32 words
A compound as in claim 1 wherein R 1 and R 3 are hydrogen, R 2 is beta-D-galactopyranosyl, R 4 is acetamido, R 5 is --OCH 3 , and n is 4.
Claim 7
Dependent Claim
28 words
A compound as in claim 1 wherein R 1 and R 2 are hydrogen, R 3 is beta-D-galactopyranosyl, R 5 is --OCH 3 , and n is 4.
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) | 1987-04-10 | 1987-10-10 | 1988-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-10 | 1991-10-10 | 1992-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-10 | 1995-10-10 | 1996-04-10 | $7700.00 | Window Closed / Lapsed |