AMPHIPHILIC POLY (AMINO ACID), BLOCK COPOLYER USING THE AMPHIPHILIC POLY (AMINO ACID), AND COMPLEX INCLUDING THE AMPHIPHILIC POLY (AMINO ACID) OR THE BLOCK COPOLYMER AND NUCLEIC ACID

    公开(公告)号:US20210340322A1

    公开(公告)日:2021-11-04

    申请号:US17280058

    申请日:2019-09-25

    摘要: The present invention provides an amphiphilic poly(amino acid) for nucleic acid delivery, which is represented by the following formula (1): where: R1 represents a hydroxy group, an oxybenzyl group, an —O—R1a group, or an —NH—R1b group, where R1a and R1b each independently represent an unsubstituted or substituted, linear or branched alkyl group having 1 to 12 carbon atoms; R2 represents a hydrogen atom, an unsubstituted or substituted, linear or branched alkyl group having 1 to 12 carbon atoms, or an unsubstituted or substituted, linear or branched alkylcarbonyl group having 1 to 24 carbon atoms; R3a, R3b, R4a, and R4b each independently represent a methylene group or an ethylene group; R5a and R5b each independently represent —O— or —NH—; R6a and R6b each independently represent an unsubstituted or substituted aliphatic hydrocarbon group having 7 to 12 carbon atoms that may contain an alicycle; R7a and R7b are each independently selected from groups identical to or different from each other in the group consisting of the following groups: —NH—(CH2)p1—[NH—(CH2)q1—]r1NH2 (i); —NH—(CH2)p2—N[—(CH2)q2—NH2]2 (ii); —NH—(CH2)p3—N{[—(CH2)q3—NH2][—(CH2)q4—NH—]r2H} (iii); and —NH—(CH2)p4—N{—(CH2)q5—N[—(CH2)q6—NH2]2}2 (iv), where p1 to p4, q1 to q6, and r1 and r2 each independently represent an integer of from 1 to 5; R8 represents a side chain of an amino acid selected from the group consisting of ornithine, lysine, homolysine, arginine, homoarginine, and histidine; m represents an integer of 9 or more; n represents an integer of from 0 to m; x represents an integer of from 2 to 300; y represents an integer of from 0 to x; and z represents an integer of from 0 to x, provided that a relationship of y+z≤x and a relationship of 11≤m+x≤400 are satisfied, and repeating units in the formula (1) may be randomly present.