US4089606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Echinatin glycosides
Assignee: Hayashibara Seibutsu Kagaku Kenkyujo KK
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Filing: 1976-04-01
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Granted: 1978-05-16
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Expires: 1996-04-01
Abstract
Abstract Echinatin glycosides are disclosed having the following formula ##STR1## wherein R 5 and/or R 6 is a glycosyl residue. These substances have pharmacological effects such as the inhibiting action of the echinatin-4'-glucoside on the growth of human lymphoblastoids. These compounds may be chemically synthesized by subjecting a compound of the following formula ##STR2## to reaction with a compound represented by the following formula ##STR3## in which R 1 and/or R 2 is a glycosyl residue or an acyl glycosyl residue, with the optional successive step of subjecting the resultant to reaction with a glycosyl halide or an acyl glycosyl halide.
Inventors
- 👤 Tsutomu Furuya
- 👤 Shinichi Ayabe
- 👤 Miyuki Kobayashi
- 👤 Tadao Tanimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:12
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
Echinatin-4'-glucoside, represented by the formula ##STR12##
Claim 2
Dependent Claim
6 words
Echinatin-4'-glucoside, represented by the formula ##STR12##
References Cited (Backward Citations)
US3876777A
Cited
US3960835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |