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US4043979A
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Polymer-multiheteromacrocycles
Assignee: University of California, San Diego
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Filing: 1976-03-31
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Granted: 1977-08-23
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Expires: 1996-03-31
Abstract
Abstract Chiral, hinged, asymmetric host binaphthyl-based multiheteromacrocycles of oxygen covalently bonded to styrene/divinylbenzene copolymers are provided. These new compounds have specific chiral recognition properties, which properties make these new compounds useful for separating or resolving racemic and other mixtures of amino acids, amino acid esters and salts thereof for either or both of analytical purposes or large scale manufacturing procedures.
Inventors
- 👤 Donald J. Cram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:00
CPC Classifications
C; C07; C07D; C07D273/00; C07D295/00; C07D295/04; C07D295/08; C07D295/096; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/0805; C07F7/0834; C07F9/00; C07F9/02; C07F9/28; C07F9/38
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
58 words
A compound of the formula ##STR56## wherein P is the backbone of a solid styrene-divinylbenzene copolymer, each Z is H or CH 2 CH 2 OH, each X is either H or CH 3 , each Y is either H or CH 3 , and the binaphthyl groups of the macrocycle are in the (RR)- or (SS)- configurations.
Claim 2
Dependent Claim
58 words
A compound of the formula ##STR56## wherein P is the backbone of a solid styrene-divinylbenzene copolymer, each Z is H or CH 2 CH 2 OH, each X is either H or CH 3 , each Y is either H or CH 3 , and the binaphthyl groups of the macrocycle are in the (RR)- or (SS)- configurations.
Claim 3
Dependent Claim
29 words
A compound according to claim 1 wherein each X, Y and Z is hydrogen, and the binaphthyl groups of the macrocycle are in the (RR)- or (SS)- configurations. ##STR57##
Claim 4
Dependent Claim
32 words
A compound according to claim 1 wherein each X is methyl, and each Y and Z is hydrogen, and the binaphthyl groups of the macrocycle are in the (RR)- or (SS)-configurations. ##STR58##
Claim 5
Dependent Claim
38 words
A compound according to claim 1 wherein each X and each Y is methyl, each Z is hydrogen or CH 2 CH 2 OH, and the binaphthyl groups of the macrocycle are in the (RR)- or (SS)-configurations. ##STR59##
Claim 6
Dependent Claim
55 words
A compound of the formula ##STR60## wherein at least one Z is --CH 2 CH 2 OH and the remaining Z moieties are hydrogen or --CH 2 CH 2 OH, each X is hydrogen or methyl, each Y is hydrogen or methyl, and the binaphthyl groups of the macrocycle are in the (SS) or (RR)-configuration.
Claim 7
Dependent Claim
55 words
A compound of the formula ##STR60## wherein at least one Z is --CH 2 CH 2 OH and the remaining Z moieties are hydrogen or --CH 2 CH 2 OH, each X is hydrogen or methyl, each Y is hydrogen or methyl, and the binaphthyl groups of the macrocycle are in the (SS) or (RR)-configuration.
Claim 8
Dependent Claim
31 words
A compound according to claim 6 wherin one Z is --CH 2 CH 2 OH and the remaining Z moieties are hydrogen, each X is methyl and each Y is hydrogen.
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) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |