US5026898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for regioselectively preparing phosphorylated inositols and other cyclitols
Assignee: EIDP Inc
•
Filing: 1990-01-31
•
Granted: 1991-06-25
•
Expires: 2010-01-31
Abstract
Abstract A process for regioselectively preparing phosphorylated cyclitols, in particular phosphorylated inositols such as myo-inositol 1,4,5-tris(phosphate) and muo-inositol 1,3,4,5-tetrakis(phosphate). Novel cyclitols produced by means of this process are also described.
Inventors
- 👤 Frank W. Hobbs
- 👤 James L. Meek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:32
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/117
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
78 words
A 2,6-diacyl-{2,4-diacyl-}myo-inositol of the formula ##STR5## wherein A 2 and A 6 are --C(═O)W, where W is aryl, or a C 1 -C 15 straight chain, branched or cyclic alkyl, where alkyl may be internally interrupted with ether oxygen and where aryl or the alkyl may be substituted or unsubstituted with nitro, sulfonyl, halogen, ester and ketone groups, and each of A 1 , A 3 , A 4 and A 5 is H and the enantiomer thereof.
Claim 2
Dependent Claim
78 words
A 2,6-diacyl-{2,4-diacyl-}myo-inositol of the formula ##STR5## wherein A 2 and A 6 are --C(═O)W, where W is aryl, or a C 1 -C 15 straight chain, branched or cyclic alkyl, where alkyl may be internally interrupted with ether oxygen and where aryl or the alkyl may be substituted or unsubstituted with nitro, sulfonyl, halogen, ester and ketone groups, and each of A 1 , A 3 , A 4 and A 5 is H and the enantiomer thereof.
Claim 3
Dependent Claim
9 words
A compound of claim 1 wherein W is phenyl.
References Cited (Backward Citations)
US4755612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-24 | 1994-12-24 | 1995-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-24 | 1998-12-24 | 1999-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-24 | 2002-12-24 | 2003-06-25 | $7700.00 | Window Closed / Lapsed |