Solid support reagents for the synthesis of 3'-Nitrogen containi

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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524492, 524493, 525155, 5253261, 5253335, 5253336, 536 253, C03C 1200, C08L 2506, C07H 2104

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055524710

ABSTRACT:
The compounds are exemplified by the class of sulfoethyl oxygen-substituted carbamates, such compounds being useful as support reagents for automated polynucleotide synthesis of 3'-nitrogen functionalized polynucleotides. The invention includes, in one aspect, a polynucleotide synthesis reagent having the structure: ##STR1## where T is an acid-cleavable hydroxyl protecting group, e.g., 4,4'-dimethoxytritil; Q is a linker connecting the nitrogen and oxygen, e.g., n-hexyl; R.sub.1 is a nitrogen substituent, e.g., hydrogen; R.sub.2 through R.sub.4 are separately hydrogen or lower alkyl; Y is an atom which is electronegative with respect to carbon, e.g., oxygen or sulfur; X.sub.1 is an atom which is electronegative with respect to carbon, e.g., sulfone; Z is a bond or spacer arm, e.g., ethylsuccinate; and W is a derivatized solid synthesis support capable of linking to Z, e.g., an amino-dirivitized controlled pore glass. In a second aspect, the present invention includes a polynucleotide synthesis reagent having the structure: ##STR2## where T, Q, R.sub.1, R.sub.2 -R.sub.3, X.sub.2, Z, and W are as defined above.

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