Process for preparing peptide derivatized oligomeric compounds
First Claim
Patent Images
1. A method for preparing a peptide linked oligomeric compound comprising the steps of:
- (a) providing a support medium derivatized with a compound wherein said compound comprises a protected hydroxyl group;
(b) treating said protected hydroxyl group with a deprotecting reagent effective to deprotect said hydroxyl group;
(c) reacting said deprotected hydroxyl group with a 2′
-, 3′
-, or 5′
-H-phosphonate nucleoside having a protected hydroxyl group and an activated phosphorus containing substituent group thereby forming an extended compound;
(d) optionally treating said extended compound with a capping agent to form a capped compound;
(e) optionally repeating steps (b), (c) and (d) to form a further extended compound;
(f) treating said capped compound or said further extended compound with an oxidizing reagent thereby forming an oxidized compound comprising one or more nucleosides;
(g) repeating steps (b), (c), (d), (e) and (f) for oxidized compounds comprising one nucleoside or optionally repeating steps (b), (c), (d), (e) and (f) for oxidized compounds comprising more than one nucleoside to give a further oxidized compound;
(h) cleaving said oxidized compound or said further oxidized compound from the support medium to give said oligomeric compound comprising a linking moiety;
(i) treating said linking moiety attached to said oligomeric compound with reagents effective to form a reactive sulfur moiety on said linking moiety; and
(j) reacting said reactive sulfur moiety with a peptide wherein said peptide is functionalized with a functional group reactive with said sulfur moiety thereby forming said peptide linked oligomeric compound. 2.K The method of claim 1 wherein one of said reactive sulfur moiety and said functional group is —
SH and the other of said reactive sulfur moiety and said functional group is a disulfide group.
2 Assignments
0 Petitions
Accused Products
Abstract
Methods of preparing peptide linked oligomeric compounds are provided. The method is useful for preparing larger scale amounts of peptide linked oligomeric compounds. More particularly, the synthesis of peptide linked oligomeric compounds is performed without the problems of aggregation associated with electrostatic interactions. The present method describes using equimolar amounts of oligomeric compounds and peptide reagents providing for an increase in overall efficiency.
-
Citations
23 Claims
-
1. A method for preparing a peptide linked oligomeric compound comprising the steps of:
-
(a) providing a support medium derivatized with a compound wherein said compound comprises a protected hydroxyl group;
(b) treating said protected hydroxyl group with a deprotecting reagent effective to deprotect said hydroxyl group;
(c) reacting said deprotected hydroxyl group with a 2′
-, 3′
-, or 5′
-H-phosphonate nucleoside having a protected hydroxyl group and an activated phosphorus containing substituent group thereby forming an extended compound;
(d) optionally treating said extended compound with a capping agent to form a capped compound;
(e) optionally repeating steps (b), (c) and (d) to form a further extended compound;
(f) treating said capped compound or said further extended compound with an oxidizing reagent thereby forming an oxidized compound comprising one or more nucleosides;
(g) repeating steps (b), (c), (d), (e) and (f) for oxidized compounds comprising one nucleoside or optionally repeating steps (b), (c), (d), (e) and (f) for oxidized compounds comprising more than one nucleoside to give a further oxidized compound;
(h) cleaving said oxidized compound or said further oxidized compound from the support medium to give said oligomeric compound comprising a linking moiety;
(i) treating said linking moiety attached to said oligomeric compound with reagents effective to form a reactive sulfur moiety on said linking moiety; and
(j) reacting said reactive sulfur moiety with a peptide wherein said peptide is functionalized with a functional group reactive with said sulfur moiety thereby forming said peptide linked oligomeric compound. 2.K The method of claim 1 wherein one of said reactive sulfur moiety and said functional group is —
SH and the other of said reactive sulfur moiety and said functional group is a disulfide group.- View Dependent Claims (2, 3, 4, 7, 8, 9, 10, 11, 12)
wherein T, is hydrogen or a hydroxyl protecting group;
J is C1-C12 alkyl or -Q1-G-Q2;
Q1 is C1-C12 alkyl, alkaryl or [(CH2)mm—
O—
(CH2)mm,];
each mm and mm′
are, independently, from 1 to about 6;
p is from 1 to about 6;
Q2 is C1-C12 alkyl;
G2 is —
NH—
C(O)—
, —
NH—
C(O)—
NH—
, —
NH—
C(S)—
NH—
, —
NH—
O—
, or —
NH—
C(O)—
O—
;
each X2 is, independently, O or S;
each X1 is, independently, R5—
O—
, Pg-S—
, C1-C10 straight or branched chain alkyl, CH3(CH2)5—
O—
, R2R3N—
or a group remaining from coupling a chiral auxiliary;
g is from 0 to 10;
R5 is CH3, —
GH2CH2CN, —
C(CH3)(CH3)—
CCl3, —
CH2—
CCl3, —
CH2CH═
GH2, CH2CH2SiCH3, 2-yl-ethyl phenylsulfonate, δ
-cyanobutenyl, cyano p-xylyl, diphenylsilylethyl, 4-nitro-2-yl-ethylbenzene, 2-yl-ethyl-methyl sulfonate, methyl-N-trifluoroacetyl ethyl, acetoxy phenoxy ethyl, or a blocking group;
each R2 and R3 is, independently, hydrogen, C1-C10 alkyl, cycloalkyl or aryl;
or optionally, R2 and R3, together with the nitrogen atom to which they are attached form a cyclic moiety;
each Bx is, independently, a heterocyclic base moiety;
each R1 is, independently, H, a blocked hydroxyl group, or a sugar substituent group; and
n is from 2 to about 50.
-
-
12. The method of claim 1 wherein said reactive sulfur moiety is reacted with an equimolar amount of said functionalized peptide.
-
5. The method of claim 5 wherein said deprotecting reagent is a weak acid.
-
6. The method of claim 6 wherein said deprotecting reagent is dichloroacetic acid or trichloroacetic acid.
-
13. A method for preparing a peptide linked oligomeric compound having one of the formulas:
-
wherein T1 is hydrogen or a hydroxyl protecting group;
each X2 is, independently, O or S;
each X1 is, independently, Pg-O—
, Pg-S—
, C1-C10 straight or branched chain alkyl, CH3(CH2)g—
O—
, R2R3N—
or a group remaining from coupling a chiral auxiliary;
g is from 0 to 10;
Pg is CH3, —
CH2CH2CN, —
C(CH3)(CH3)—
CCl3, —
CH2—
CCl3, —
CH2CH═
CH2, CH2CH2SiCH3, 2-yl-ethyl phenylsulfonate, δ
-cyanobutenyl, cyano p-xylyl, diphenylsilylethyl, 4-nitro-2-yl-ethylbenzene, 2-yl-ethyl-methyl sulfonate, methyl-N-trifluoroacetyl ethyl, acetoxy phenoxy ethyl, or a blocking group;
each R2 and R3 is, independently, hydrogen, C1-C10 alkyl, cycloalkyl or aryl;
or optionally, R2 and R3, together with the nitrogen atom to which they are attached form a cyclic moiety;
each Bx is, independently, a heterocyclic base moiety;
each R1 is, independently, H, a blocked hydroxyl group, or a sugar substituent group;
n is from 2 to about 50; and
JJ has one of the formulas;
wherein * denotes the point of attachment to the peptide;
comprising the steps of;
providing an oligomeric compound of the formula;
wherein L has one of the formulas;
reacting said oligomeric compound with a functionalized peptide having a —
SH functional group thereby forming said peptide linked oligomeric compound.
-
-
14. The method of claim 14 wherein said oligomeric compound is reacted with an equimolar amount of said functionalized peptide.
-
15. A peptide linked oligomeric compound having the formula:
-
wherein; R9 is an oligomeric compound;
Q1 is C1-C12 alkyl, —
[(CH2)mm—
O—
CH2)mm,], aryl or alkaryl;
p is from 1 to about 6;
each mm and mm′
are, independently, from 1 to about 6; and
Q2 is C2-C12 alkyl.
-
-
16. The peptide linked oligomeric compound of claim 16, wherein Q1 is propyl and is ethyl.
-
17. A method for preparing a peptide linked oligomeric compound comprising the steps of:
-
(a) providing a support medium derivatized with a compound having the formula;
wherein R9 comprises a hydroxy] protecting group;
Q1 is C1-C12 alkyl, alkaryl or —
[(CH2)mm—
I—
(CH2)mm,]p-;
Q3 is C1-C12 alkyl, aryl or alkaryl;
Sm is a support medium;
p is from 1 to about 6; and
each mm and mm′
are, independently, from 1 to about 6;
(b) treating said hydroxyl protecting group with a deprotecting reagent effective to deprotect said hydroxyl group;
(c) reacting said deprotected hydroxyl group with a nucleoside having a protected hydroxyl group and an activated phosphorus containing substituent group thereby forming an extended compound;
(d) optionally treating said extended compound with a capping agent to form a capped compound;
(e) optionally repeating steps (b), (c) and (d) to form a further extended compound;
(f) treating said capped compound or said further extended compound with an oxidizing reagent thereby forming an oxidized compound comprising one or more nucleosides;
(g) repeating steps (b), (c), (d), (e) and (f) for oxidized compounds comprising one nucleoside or optionally repeating steps (b), (c), (d), (e) and (f) for oxidized compounds comprising more than one nucleoside to give a further oxidized compound;
(h) cleaving said oxidized compound or said further oxidized compound from the support medium to give said oligomeric compound comprising a linking moiety;
(i) treating said linking moiety attached to said oligomeric compound with reagents effective to form a reactive sulfur moiety on said linking moiety; and
(j) reacting said reactive sulfur moiety with a peptide wherein said peptide is functionalized with a functional group reactive with said sulfur moiety thereby forming said peptide linked oligomeric compound.
-
-
18. The method of claim 18 wherein
is a support medium having long chain alkyl amine groups.
-
20. A method for preparing a peptide linked oligomeric compound comprising the steps of:
-
(a) providing a support medium derivatized with a compound wherein said compound comprises a protected hydroxyl group;
(b) treating said protected hydroxyl group with a deprotecting reagent effective to deprotect said hydroxyl group;
(c) reacting said deprotected hydroxyl group with a nucleoside having a protected hydroxyl group and an activated phosphorus containing substituent group thereby forming an extended compound;
(d) treating said extended compound with a capping agent to form a capped compound, wherein said capping agent comprises 20% acetic anhydride in acetonitrile mixed with about an equal volume of a solution having 20% N-methylimidazole, 30% pyridine and 50% acetonitrile;
(e) optionally repeating steps (b), (c) and (d) to form a further extended compound;
(f) treating said capped compound or said further extended compound with an oxidizing reagent thereby forming an oxidized compound comprising one or more nucleosides;
(g) repeating steps (b), (c), (d), (e) and (f) for oxidized compounds comprising one nucleoside or optionally repeating steps (b), (c), (d), (e) and (f) for oxidized compounds comprising more than one nucleoside to give a further oxidized compound;
(h) cleaving said oxidized compound or said further oxidized compound from the support medium to give said oligomeric compound comprising a linking moiety;
(i) treating said linking moiety attached to said oligomeric compound with reagents effective to form a reactive sulfur moiety on said linking moiety; and
(j) reacting said reactive sulfur moiety with a peptide wherein said peptide is functionalized with a functional group reactive with said sulfur moiety thereby forming said peptide linked oligomeric compound.
-
-
21. A method for preparing a peptide linked oligomeric compound comprising the steps of:
-
(a) providing a support medium derivatized with a compound that comprises a protected hydroxyl group;
(b) treating said protected hydroxyl group with a deprotecting reagent effective to deprotect said hydroxyl group;
(c) reacting said deprotected hydroxyl group with a nucleoside having a protected hydroxyl group and an activated phosphorus containing substituent group, thereby forming an extended compound;
(d) optionally treating said extended compound with a capping agent to form a capped compound;
(e) optionally repeating steps (b), (c) and (d) to form a further extended compound;
(f) treating said capped compound or said further extended compound with an oxidizing reagent thereby forming an oxidized compound comprising one or more nucleosides;
(g) repeating steps (b), (c), (d), (e) and (f) for oxidized compounds comprising one nucleoside or optionally repeating steps (b), (c), (d), (e) and (f) for oxidized compounds comprising more than one nucleoside to give a further oxidized compound;
(h) cleaving said oxidized compound or said further oxidized compound from the support medium to give said oligomeric compound comprising a linking moiety, wherein said cleaving is performed using a bifunctional compound having an internal disulfide group;
(i) treating said linking moiety attached to said oligomeric compound with reagents effective to form a reactive sulfur moiety on said linking moiety; and
(j) reacting said reactive sulfur moiety with a peptide wherein said peptide is functionalized with a functional group reactive with said sulfur moiety thereby forming said peptide linked oligomeric compound.
-
-
22. The method of claim 22 where said bifunctional compound has the formula H2N-(CH2)q—
- S—
S—
(CH2)q—
NH2 wherein each q is from 2 to about 6.
- S—
-
23. A compound having the formula:
-
wherein; R8 is hydrogen, a hydroxyl protecting group, a nucleoside, a nucleotide or an oligomeric compound;
Q1 propyl and Q is methyl; and
Sm is a support medium.
-
Specification