Magnetic particles as supports for organic synthesis
First Claim
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1. Oligomer synthesis support comprising a magnetic particle covalently bound to oligomer subunits, said oligomer subunits comprising subunits of deoxyribonucleic acid or ribonucleic acid.
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Abstract
A support system for organic synthesis comprising magnetic particles in a dispersion medium covalently attached to functional groups having affinity for polymer subunits, and methods for making and using the support system, e.g. for synthesis of oligodeoxynucleotides and polypeptides.
30 Citations
28 Claims
- 1. Oligomer synthesis support comprising a magnetic particle covalently bound to oligomer subunits, said oligomer subunits comprising subunits of deoxyribonucleic acid or ribonucleic acid.
- 7. An organic synthesis support that comprises a magnetic particle having reactive sites covalently coupled to functional groups, the remaining reactive sites being blocked against reaction by silyl blocking groups.
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17. A cross-linked oligomer synthesis support having the following structure:
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space="preserve" listing-type="equation">M--O--Si(X).sub.n [R.sub.m (Y).sub.p ].sub.3-n --Zwherein M is the surface of a magnetic support particle;
O is the oxygen of the metal oxide or hydroxide;
Si is the silicon of the organosilane linking or coupling agent;
X is a member of the group of alkenyloxy, alkaryloxy, alkynyloxy, alkoxy and halo;
n is an integer with a value of 0, 1 or 2;
is a linking group and member of a group of alkyl, alkenyl, alkynyl or aryl where the group contains more than one carbon atom;
n is an integer with a value of 1, 2 or 3;
Y is a member of the group of amino, hydroxyl or carboxyl which will covalently combine with an oligomer subunit or precursor;
p is an integer with a value of at least 1;
Z is an initial oligomer subunit.
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- 21. A method of making a support for organic synthesis that comprises reacting a magnetic particle with a silane coupling or linking agent and reacting the resulting product with an oligomer subunit.
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26. An oligomer support synthesis having the following structure:
- ##STR11## wherein M is the support particle, O is the oxygen of the metal oxide or hydroxide, Si is silicon, X is a cleaving group, R is a linking group, Y is a functional group which can react with and bind the oligomer subunit or a group linked thereto, or cross linking agents B and B'"'"' which are chemical bonds or functional groups which react to form covalent bonds with the functional group Y, A is a linking group which bridges the Y groups and is bound to the oligomer subunit to be worked on, either directly or through reactive group C, n is an integer having a value of 1 to 3, m is an integer having a value of at least 1, p is an integer having a value of 1-3, q and r are integers having the value of at least 1, q+r being from 3-7, and s is 0 to 5.
- View Dependent Claims (27, 28)
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