Patent US4454290A successfully refreshed from Google Patents.
US4454290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stevioside analogs
Assignee: Dynapol Shareholders Liquidating Trust
•
Filing: 1981-06-11
•
Granted: 1984-06-12
•
Expires: 2001-06-11
Abstract
Abstract Analogs of the glycoside stevioside are disclosed. These materials have the formula <IMAGE> wherein R is a simple physiologically acceptable noncarbohydrate polar organic group. The analogs are sweet and find use as sweeteners.
Inventors
- 👤 Grant E. Dubois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:34
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/20; C07H15/24; C07H15/256; A; A23; A23L; A23L27/00; A23L27/30; A23L27/33; A23L27/36; C07C; C07C309/00; C07C309/01; C07C309/02; C07C309/03; C07C309/07; C07C309/09; C07C309/11
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
185 words
A steviol analogue compound having the structure ##STR16## where R is a member selected from the group consisting of 1-5 carbon alkyl terminal sulfonates, alkyl polysulfonates of the formulae --CH 2 --CH--(SO 3 - M + ) 2 , --(CH 2 ) 2 --CH--(SO 3 - M + ) 2 , and --CH 2 --CH--(SO 3 - M + )--CH 2 --CH 2 --SO 3 - M + , 1-5 carbon alkyl terminal carboxylates, an alkyl polycarboxylate of the formula --CH 2 --COO - M + --(CH 2 ) 2 --COO - M + , 1-5 carbon alkyl terminal phosphonates, polyhydroxyl alkyls of the formulae --(CH 2 ) n --CH(OH)--CH(OH)--CH 2 OH and --(CH 2 ) n --CH(OH)--CH 2 OH wherein n is 1 or 2, 1-5 carbon alkyl primary amine salts of the formulae --(CH 2 ) n --NH 3 + N - wherein n is an integer from 1 to 5 inclusive, 1-5 carbon alkyl sulfonates and 1-5 carbon alkyl amino-carboxylates wherein M + is a physiologically acceptable alkali metal or alkaline earth metal cation and X - is a physiologically acceptable anion.
Claim 2
Dependent Claim
185 words
A steviol analogue compound having the structure ##STR16## where R is a member selected from the group consisting of 1-5 carbon alkyl terminal sulfonates, alkyl polysulfonates of the formulae --CH 2 --CH--(SO 3 - M + ) 2 , --(CH 2 ) 2 --CH--(SO 3 - M + ) 2 , and --CH 2 --CH--(SO 3 - M + )--CH 2 --CH 2 --SO 3 - M + , 1-5 carbon alkyl terminal carboxylates, an alkyl polycarboxylate of the formula --CH 2 --COO - M + --(CH 2 ) 2 --COO - M + , 1-5 carbon alkyl terminal phosphonates, polyhydroxyl alkyls of the formulae --(CH 2 ) n --CH(OH)--CH(OH)--CH 2 OH and --(CH 2 ) n --CH(OH)--CH 2 OH wherein n is 1 or 2, 1-5 carbon alkyl primary amine salts of the formulae --(CH 2 ) n --NH 3 + N - wherein n is an integer from 1 to 5 inclusive, 1-5 carbon alkyl sulfonates and 1-5 carbon alkyl amino-carboxylates wherein M + is a physiologically acceptable alkali metal or alkaline earth metal cation and X - is a physiologically acceptable anion.
Claim 3
Dependent Claim
16 words
The compound of claim 1 wherein R is a 1 to 5 carbon alkyl terminal sulfonate.
Claim 4
Dependent Claim
45 words
The compound of claim 2 wherein R is of the formula -- (CH 2 ) n --SO 3 - M + wherein n is an integer from 2 to 5 and M + is a physiologically acceptable alkaline earth metal cation or alkali metal cation.
Claim 5
Dependent Claim
29 words
The compound of claim 3 wherein n is 3 or 4 and M + is selected from Na + , K + , 1/2Ca ++ and 1/2Mg ++ .
Claim 6
Dependent Claim
19 words
The compound of claim 4 wherein n is 3 and M + is Na + or K + .
Claim 7
Dependent Claim
48 words
The compound of claim 1 wherein R has a formula selected from -- (CH 2 )--CH--(SO 3 - M + ) and --(CH 2 ) 2 --CH--(SO 3 - M + ) 2 and M + is a physiologically acceptable alkaline earth metal cation or alkali metal cation.
Claim 8
Dependent Claim
44 words
The compound of claim 1 wherein R is of the formula --(CH 2 ) n --COO - M + wherein n is an integer from 1 to 5 inclusive and M + is a physiologically acceptable alkaline earth metal cation or alkali metal cation.
Claim 9
Dependent Claim
50 words
The compound of claim 1 wherein R is an alkyl terminal phosphonate of the formula --(CH 2 ) n --PO 3 H - M + and n is an integer from 1 through 5 inclusive and M + is a physiologically acceptable alkaline earth metal cation or alkali metal cation.
Claim 10
Dependent Claim
11 words
The compound of claim 1 wherein R is an alkyl polycarboxylate.
Claim 11
Dependent Claim
11 words
The compound of claim 1 wherein R is a polyhydroxyl alkyl.
Claim 12
Dependent Claim
13 words
The compound of claim 1 wherein R is a primary alkyl amine salt.
Claim 13
Dependent Claim
11 words
The compound of claim 1 wherein R is an alkyl sulfonate.
Claim 14
Dependent Claim
16 words
The compound of claim 1 wherein R is a 2 to 5 carbon alkyl amino carboxylate.
References Cited (Backward Citations)
US1984714A
Cited
US2107508A
Cited
US3732202A
Cited
US3723410A
Cited
US4082858A
Cited
US4226804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |