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US 7,700,524 B2Granted
Perfluoro sulfonyl halides and related species as polymer support modifiers
AssigneeGe Healthcare Limited
InventorsChristopher Holmes, Yijun Pan
Life of this patent
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Abstract
Activated Supports, support-bound activators, strongly acidic supports, and silylating supports are provided; the activated support having the formula (I) wherein L is a linking group component; X is F, CL, OH, and trisubstituted silyloxy; and the shaded circle represents a solid or semi-solid support. Methods of using the activated supports in solid phase organic sync) thesis are also provided.
Claims4
A support-bound activator selected from:
- wherein:
- R1 is a member selected from the group consisting of H and (C1-C8)alkyl;
- the subscript g is an integer selected from the group consisting of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10;
- the subscript i is an integer selected from the group consisting of 1, 2, 3, 4, 5, and 6;
- the subscript j is an integer selected from the group consisting of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10;
- the subscript k is an integer selected from the group consisting of 1, 2, 3, and 4;
- and
- the subscript m is an integer selected from the group consisting of 2 and 3;
- and
- wherein the support-bound activator is covalently attached to a solid or semi-solid support, wherein said solid or semi-solid support comprises a material selected from the group consisting of polystyrene, controlled pore glass, polyacrylamide, poly(ethyleneglycol)monomethyl ether, polyethylene glycol, silica gel, cellulose, acrylic acid grafted polypropylene, polystyrene modified by polyethylene glycol, and combinations thereof.
7 more elements
A support-bound activator selected from:
- wherein in each of formulae A and B,
- X can be F, Cl, trisubstituted silyloxy, or OH;
- Q is O;
- Z is a chemical bond or C═O;
- Y is O-support or NR1-support wherein R1 is H, (C1-C8)alkyl or aryl and the support is a PEG-modified polystyrene or a Merrifield resin;
- and
- each R2 is independently a member selected from the group consisting of hydrogen, halogen, (C1-C8)alkyl, (C1-C8)alkoxy, (C2-C8)heteroalkyl, (C1-C8)alkylthio, (C1-C8)alkylamino, di(C1-C8)alkylamino, cyano, nitro and (C1-C8)alkylsulfonyl;
- ‘g’ is an integer selected from the group consisting of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11;
- ‘h’ is an integer selected from the group consisting of 1, 2, 3, 4, 5, 6, 7, and 8;
- ‘i’ is an integer selected from the group consisting of 0, 1, 2, 3, 4, 5, 6, 7, and 8;
- ‘j’ is an integer selected from the group consisting of 1, 2, 3, and 4;
- ‘n’ is an integer selected from the group consisting of 0, 1, 2, 3, and 4;
- and
- ‘q’ is an integer selected from the group consisting of 1 and 2.
11 more elements
A support-bound activator having the following formula:
- wherein R is hydrogen or ethyl.
Dependencies are inferred from the claim text.