JP7036510B2 - ポリ(環状イミノエーテル) - Google Patents
ポリ(環状イミノエーテル) Download PDFInfo
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- JP7036510B2 JP7036510B2 JP2018566217A JP2018566217A JP7036510B2 JP 7036510 B2 JP7036510 B2 JP 7036510B2 JP 2018566217 A JP2018566217 A JP 2018566217A JP 2018566217 A JP2018566217 A JP 2018566217A JP 7036510 B2 JP7036510 B2 JP 7036510B2
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- JP
- Japan
- Prior art keywords
- fragment
- copolymer
- ini
- nuc
- oxazoline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- ODUCDPQEXGNKDN-UHFFFAOYSA-N nitroxyl Chemical compound O=N ODUCDPQEXGNKDN-UHFFFAOYSA-N 0.000 title description 7
- 125000004122 cyclic group Chemical group 0.000 title description 4
- 239000000178 monomer Substances 0.000 claims description 58
- 229920001577 copolymer Polymers 0.000 claims description 53
- 239000012634 fragment Substances 0.000 claims description 35
- 229920000028 Gradient copolymer Polymers 0.000 claims description 29
- 239000003814 drug Substances 0.000 claims description 24
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 claims description 20
- BYVSMDBDTBXASR-UHFFFAOYSA-N 5,6-dihydro-4h-oxazine Chemical compound C1CON=CC1 BYVSMDBDTBXASR-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 239000011541 reaction mixture Substances 0.000 claims description 15
- 239000000693 micelle Substances 0.000 claims description 13
- 238000012656 cationic ring opening polymerization Methods 0.000 claims description 12
- 125000000217 alkyl group Chemical group 0.000 claims description 11
- 229940079593 drug Drugs 0.000 claims description 11
- 238000012377 drug delivery Methods 0.000 claims description 9
- 125000002252 acyl group Chemical group 0.000 claims description 7
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 7
- 125000001424 substituent group Chemical group 0.000 claims description 7
- 125000003107 substituted aryl group Chemical group 0.000 claims description 7
- 238000010538 cationic polymerization reaction Methods 0.000 claims description 6
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000003505 polymerization initiator Substances 0.000 claims description 6
- 125000005346 substituted cycloalkyl group Chemical group 0.000 claims description 6
- 125000003504 2-oxazolinyl group Chemical group O1C(=NCC1)* 0.000 claims description 5
- 239000012038 nucleophile Substances 0.000 claims description 5
- 125000006545 (C1-C9) alkyl group Chemical group 0.000 claims description 4
- 150000001266 acyl halides Chemical class 0.000 claims description 2
- 150000001350 alkyl halides Chemical class 0.000 claims description 2
- 229940045714 alkyl sulfonate alkylating agent Drugs 0.000 claims description 2
- 150000008052 alkyl sulfonates Chemical class 0.000 claims description 2
- 150000003460 sulfonic acids Chemical class 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 description 41
- -1 2-substituted 2-oxazoline Chemical class 0.000 description 21
- 238000004458 analytical method Methods 0.000 description 21
- 229920006301 statistical copolymer Polymers 0.000 description 21
- 229920005604 random copolymer Polymers 0.000 description 20
- 239000000203 mixture Substances 0.000 description 17
- VERUITIRUQLVOC-UHFFFAOYSA-N 2-butyl-4,5-dihydro-1,3-oxazole Chemical compound CCCCC1=NCCO1 VERUITIRUQLVOC-UHFFFAOYSA-N 0.000 description 15
- 238000007334 copolymerization reaction Methods 0.000 description 15
- 229920001400 block copolymer Polymers 0.000 description 14
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 14
- 238000006116 polymerization reaction Methods 0.000 description 14
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 12
- 230000002209 hydrophobic effect Effects 0.000 description 12
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 12
- BCHZICNRHXRCHY-UHFFFAOYSA-N 2h-oxazine Chemical compound N1OC=CC=C1 BCHZICNRHXRCHY-UHFFFAOYSA-N 0.000 description 11
- 229940124597 therapeutic agent Drugs 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- NYEZZYQZRQDLEH-UHFFFAOYSA-N 2-ethyl-4,5-dihydro-1,3-oxazole Chemical compound CCC1=NCCO1 NYEZZYQZRQDLEH-UHFFFAOYSA-N 0.000 description 10
- GUXJXWKCUUWCLX-UHFFFAOYSA-N 2-methyl-2-oxazoline Chemical compound CC1=NCCO1 GUXJXWKCUUWCLX-UHFFFAOYSA-N 0.000 description 10
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 230000002441 reversible effect Effects 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 6
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 6
- 229920000765 poly(2-oxazolines) Polymers 0.000 description 6
- 108090000623 proteins and genes Proteins 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 238000007429 general method Methods 0.000 description 5
- 230000009257 reactivity Effects 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- 108020004414 DNA Proteins 0.000 description 4
- AOJJSUZBOXZQNB-TZSSRYMLSA-N Doxorubicin Chemical compound O([C@H]1C[C@@](O)(CC=2C(O)=C3C(=O)C=4C=CC=C(C=4C(=O)C3=C(O)C=21)OC)C(=O)CO)[C@H]1C[C@H](N)[C@H](O)[C@H](C)O1 AOJJSUZBOXZQNB-TZSSRYMLSA-N 0.000 description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 238000001943 fluorescence-activated cell sorting Methods 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 150000002918 oxazolines Chemical class 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- OZFAFGSSMRRTDW-UHFFFAOYSA-N (2,4-dichlorophenyl) benzenesulfonate Chemical compound ClC1=CC(Cl)=CC=C1OS(=O)(=O)C1=CC=CC=C1 OZFAFGSSMRRTDW-UHFFFAOYSA-N 0.000 description 3
- MFWNKCLOYSRHCJ-AGUYFDCRSA-N 1-methyl-N-[(1S,5R)-9-methyl-9-azabicyclo[3.3.1]nonan-3-yl]-3-indazolecarboxamide Chemical compound C1=CC=C2C(C(=O)NC3C[C@H]4CCC[C@@H](C3)N4C)=NN(C)C2=C1 MFWNKCLOYSRHCJ-AGUYFDCRSA-N 0.000 description 3
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 3
- YQKCJKWODYOSRD-UHFFFAOYSA-N 2-butyl-4-ethyl-4,5-dihydro-1,3-oxazole Chemical compound CCCCC1=NC(CC)CO1 YQKCJKWODYOSRD-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 239000012591 Dulbecco’s Phosphate Buffered Saline Substances 0.000 description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- FQZYTYWMLGAPFJ-OQKDUQJOSA-N tamoxifen citrate Chemical compound [H+].[H+].[H+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.C=1C=CC=CC=1C(/CC)=C(C=1C=CC(OCCN(C)C)=CC=1)/C1=CC=CC=C1 FQZYTYWMLGAPFJ-OQKDUQJOSA-N 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 2
- 150000000376 2-oxazolines Chemical class 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- BFYIZQONLCFLEV-DAELLWKTSA-N Aromasine Chemical compound O=C1C=C[C@]2(C)[C@H]3CC[C@](C)(C(CC4)=O)[C@@H]4[C@@H]3CC(=C)C2=C1 BFYIZQONLCFLEV-DAELLWKTSA-N 0.000 description 2
- GAGWJHPBXLXJQN-UORFTKCHSA-N Capecitabine Chemical compound C1=C(F)C(NC(=O)OCCCCC)=NC(=O)N1[C@H]1[C@H](O)[C@H](O)[C@@H](C)O1 GAGWJHPBXLXJQN-UORFTKCHSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000005411 L01XE02 - Gefitinib Substances 0.000 description 2
- LKJPYSCBVHEWIU-UHFFFAOYSA-N N-[4-cyano-3-(trifluoromethyl)phenyl]-3-[(4-fluorophenyl)sulfonyl]-2-hydroxy-2-methylpropanamide Chemical compound C=1C=C(C#N)C(C(F)(F)F)=CC=1NC(=O)C(O)(C)CS(=O)(=O)C1=CC=C(F)C=C1 LKJPYSCBVHEWIU-UHFFFAOYSA-N 0.000 description 2
- 229930012538 Paclitaxel Natural products 0.000 description 2
- 108020004459 Small interfering RNA Proteins 0.000 description 2
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- 241000700605 Viruses Species 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 239000006285 cell suspension Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- STQGQHZAVUOBTE-VGBVRHCVSA-N daunorubicin Chemical compound O([C@H]1C[C@@](O)(CC=2C(O)=C3C(=O)C=4C=CC=C(C=4C(=O)C3=C(O)C=21)OC)C(C)=O)[C@H]1C[C@H](N)[C@H](O)[C@H](C)O1 STQGQHZAVUOBTE-VGBVRHCVSA-N 0.000 description 2
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- DBEPLOCGEIEOCV-WSBQPABSSA-N finasteride Chemical compound N([C@@H]1CC2)C(=O)C=C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H](C(=O)NC(C)(C)C)[C@@]2(C)CC1 DBEPLOCGEIEOCV-WSBQPABSSA-N 0.000 description 2
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- OSVMTWJCGUFAOD-KZQROQTASA-N formestane Chemical compound O=C1CC[C@]2(C)[C@H]3CC[C@](C)(C(CC4)=O)[C@@H]4[C@@H]3CCC2=C1O OSVMTWJCGUFAOD-KZQROQTASA-N 0.000 description 2
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- XGALLCVXEZPNRQ-UHFFFAOYSA-N gefitinib Chemical compound C=12C=C(OCCCN3CCOCC3)C(OC)=CC2=NC=NC=1NC1=CC=C(F)C(Cl)=C1 XGALLCVXEZPNRQ-UHFFFAOYSA-N 0.000 description 2
- SDUQYLNIPVEERB-QPPQHZFASA-N gemcitabine Chemical compound O=C1N=C(N)C=CN1[C@H]1C(F)(F)[C@H](O)[C@@H](CO)O1 SDUQYLNIPVEERB-QPPQHZFASA-N 0.000 description 2
- 229960003297 gemtuzumab ozogamicin Drugs 0.000 description 2
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- UWKQSNNFCGGAFS-XIFFEERXSA-N irinotecan Chemical compound C1=C2C(CC)=C3CN(C(C4=C([C@@](C(=O)OC4)(O)CC)C=4)=O)C=4C3=NC2=CC=C1OC(=O)N(CC1)CCC1N1CCCCC1 UWKQSNNFCGGAFS-XIFFEERXSA-N 0.000 description 2
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- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
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- JWIGYFLNZLWQQU-UHFFFAOYSA-N 4-azidoisoindole-1,3-dione Chemical class [N-]=[N+]=NC1=CC=CC2=C1C(=O)NC2=O JWIGYFLNZLWQQU-UHFFFAOYSA-N 0.000 description 1
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- NIRYAMUQLIEZLP-UHFFFAOYSA-N methyl 3-(4,5-dihydro-1,3-oxazol-2-yl)propanoate Chemical compound COC(=O)CCC1=NCCO1 NIRYAMUQLIEZLP-UHFFFAOYSA-N 0.000 description 1
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Images
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- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
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Description
本発明は、ポリ(環状イミノエーテル)に関する。より詳細には、本発明は、2-オキサゾリンモノマー及び2-オキサジンモノマーの統計コポリマーに関する。
ポリマー治療剤は、合理的に設計された高分子薬物、ポリマー-薬物及びポリマー-タンパク質複合体、共有結合型又は非共有結合型薬物を含有するポリマーミセル、並びにDNA送達のためのポリプレックスを含む。
a)[N(CO)(RA)CH2CH2]-{式中、RAは、任意選択で-OH、-SH、-COOH、-NR’2、-COOR’、-CONR’、-CHOによって置換される炭化水素基であり、R’はH又はC1~3アルキルを表し、RAは、第1の繰返し単位が親水性であるように選択される}
によって表される第1の繰返し単位、及び
-「N(CO)(RB)CH2CH2]-{式中、RBは、任意選択でハロゲン、-OH、-SH、-COOH、-NR”2、-COOR”、-CONR”、-CHOによって置換される炭化水素基であり、R”はH、アルキル又はアルケニルを表し、RBは、第2の繰返し単位が第1の繰返し単位より疎水性であるように選択される}
によって表される第2の繰返し単位
を含む少なくとも1つのコポリマー、並びに
b)1つ又は複数の活性剤
を含む活性剤のポリマー送達システムを記載している。
本発明者らは、所望の特性を有するポリ(環状イミノエーテル)が2-オキサゾリンモノマー並びに2-オキサジンモノマーを含有するモノマー反応混合物の統計重合によって大きな困難なく産生され得ることを発見した。
Ini-[Ox]m-[Oz]n-Nuc (I)
{式中:
Iniはカチオン性重合の開始剤の残基を表し、
Nucは求核剤の残基を表し、
OxはN(R1)CHRaCHRaを表し;各R1は独立してH又はC(O)R11を表し;R11は独立して任意選択で置換されたC1~12アルキル、任意選択で置換されたシクロアルキル、任意選択で置換されたアラルキル又は任意選択で置換されたアリールを表し;
OzはN(R2)CHRaCHRaCHRaを表し;各R2は独立してC(O)R21又はHを表し;R21は独立して任意選択で置換されたC1~12アルキル、任意選択で置換されたシクロアルキル、任意選択で置換されたアラルキル又は任意選択で置換されたアリールを表し;
各Raは独立してH、直鎖状又は分枝状C1~3アルキルを表し;
m≧5;
n≧5;
m+n≧20;
3:97≦m:n≦97:3}
によって表される統計コポリマーに関する。
したがって、本発明の第1の態様は、以下の式(I):
Ini-「Ox]m-「Oz]n-Nuc (I)
{式中、
Iniはカチオン性重合の開始剤の残基を表し、
Nucは求核剤の残基を表し、
OxはN(R1)CHRaCHRaを表し;各R1は独立してH又はC(O)R11を表し;R11は独立して任意選択で置換されたC1~12アルキル、任意選択で置換されたシクロアルキル、任意選択で置換されたアラルキル又は任意選択で置換されたアリールを表し;
OzはN(R2)CHRaCHRaCHRaを表し;各R2は独立してC(O)R21又はHを表し;R21は独立して任意選択で置換されたC1~12アルキル、任意選択で置換されたシクロアルキル、任意選択で置換されたアラルキル又は任意選択で置換されたアリールを表し;
各Raは独立してH、直鎖状又は分枝状C1~3アルキルを表し;
m≧5;
n≧5;
m+n≧20;
3:97≦m:n≦97:3}
によって表される統計コポリマーに関する。
R11残基の少なくとも80%がメチルであり、R21残基の少なくとも80%がイソ-プロピルである;又は
R11残基の少なくとも80%がエチルであり、R21残基の少なくとも80%がイソ-プロピルである;又は
R11残基の少なくとも80%がシクロプロピルであり、R21残基の少なくとも80%がメチルである;又は
R11残基の少なくとも80%がシクロプロピルであり、R21残基の少なくとも80%がエチルである。
R11残基の少なくとも80%がメチルであり、R21残基の少なくとも80%がメチルである;又は
R11残基の少なくとも80%がエチルであり、R21残基の少なくとも80%がエチルである;又は
R11残基の少なくとも80%がn-プロピルであり、R21残基の少なくとも80%がn-プロピルである;又は
R11残基の少なくとも80%がn-プロピルであり、R21残基の少なくとも80%がエチルである;又は
R11残基の少なくとも80%がn-プロピルであり、R21残基の少なくとも80%がメチルである;又は
R11残基の少なくとも80%がエチルであり、R21残基の少なくとも80%がメチルである;又は
R11残基の少なくとも80%がn-ブチルであり、R21残基の少なくとも80%がメチルである;又は
R11残基の少なくとも80%がn-ブチルであり、R21残基の少なくとも80%がエチルである。
マイクロ波バイアルのキャッピングまでの重合混合物の調製に関する全ての操作は、水分濃度≦0.1ppmでVIGOR Sci-Lab SG 1200/750 Glovebox Systemにおいて行われた。
ストック溶液は、両方のモノマー(総モノマー濃度4M、個々のモノマー当たり2M)、開始剤(トシル酸メチル、DP100で全面変換又は各モノマーの50個の繰返し単位を狙う)及び溶媒(乾燥アセトニトリル)を含有して作成された。
2-メチル-2-オキサゾリン(MeOx)及び2-メチル-2-オキサジン(MeOZi)は、一般方法に記載されるように重合された。この重合の分析は、図1に示したカイネティックプロットをもたらし、予期しない逆の共重合挙動を示している。
2-エチル-2-オキサゾリン(EtOx)及び2-メチル-2-オキサジン(MeOZi)は、一般方法に記載されるように重合された。この重合の分析は、図3に示したカイネティックプロットをもたらし、予期しない逆の共重合挙動を示している。
2-メチル-2-オキサゾリン(MeOx)及び2-イソ-プロピル-2-オキサジン(ipropOZi)は、一般方法に記載されるように重合された。この共重合の分析は、図5に示したカイネティックプロットをもたらした。
2-エチル-2-オキサゾリン(EtOx)及び2-イソ-プロピル-2-オキサジン(ipropOZi))は、一般方法に記載されるように重合された。この共重合の分析は、図7に示したカイネティックプロットをもたらし、予期しない逆の共重合挙動を示している。
2-ブチル-2-オキサゾリン(ButOx)及び2-メチル-2-オキサジン(MeOZi)は、一般方法と比較してわずかに改変された手順で重合された。モノマーの1:1比の代わりに、2:8(ButOx:MeOZi)が使用された。この共重合の分析は、図9に示したカイネティックプロットをもたらし、予期しない逆の共重合挙動を示している。
2-ブチル-2-オキサゾリン(ButOx)及び2-メチル-2-オキサジン(MeOZi)は、一般方法に記載されるように重合された。この共重合の分析は、図11に示したカイネティックプロットをもたらし、予期しない逆の共重合挙動を示している。
2-ブチル-2-オキサゾリン(ButOx)及び2-メチル-2-オキサジン(MeOZi)は、一般方法と比較してわずかに改変された手順で重合された。モノマーの1:1比の代わりに、8:2(ButOx:MeOZi)が使用された。この共重合の分析は、図13に示したカイネティックプロットをもたらし、予期しない逆の共重合挙動を示している。
実施例5及び6のグラジエントコポリマーを使用して、ローダミンオクタデシルエステル(色素)がロードされた。したがって、ポリマーミセルは、水中への直接溶解によって(実施例5のポリマー)又はまずエタノールへのポリマーの溶解、続いて水の添加及び透析による溶媒の置換によって(実施例6のポリマー)、水中(10mg/mL)で調製された。色素は、エタノール(10mg/mL)に溶解され、100μLの色素溶液は1mLのポリマー溶液に添加され、続いて透析によりエタノールを除去された。
実施例4の(加水分解)ランダムコポリマーを使用してpDNAのポリプレックスが調製され、このポリプレックスを使用してヒト卵巣がん細胞は形質転換された。
Claims (10)
- 以下の式(I):
Ini-[Ox]m-[Oz]n-Nuc (I)
{式中:
Iniはカチオン性重合の開始剤の残基を表し、
Nucは求核剤の残基を表し、
OxはN(R1)CHRaCHRaを表し;各R1は独立してH又はC(O)R11を表し;R11は独立して任意選択で置換されたC1~12アルキル、任意選択で置換されたシクロアルキル、任意選択で置換されたアラルキル又は任意選択で置換されたアリールを表し;
OzはN(R2)CHRaCHRaCHRaを表し;各R2は独立してC(O)R21又はHを表し;R21は独立して任意選択で置換されたC1~12アルキル、任意選択で置換されたシクロアルキル、任意選択で置換されたアラルキル又は任意選択で置換されたアリールを表し;
各Raは独立してH、直鎖状又は分枝状C1~3アルキルを表し;
m≧5;
n≧5;
m+n≧20;
3:97≦m:n≦97:3}
によって表されるグラジエントコポリマーであって、
等しいサイズの3つの断片、Ini隣接断片(Ini断片)、Nuc隣接断片(Nuc断片)、及びIni断片とNuc断片を分ける中心断片を含み、
前記コポリマーのIni断片のモノマー比[Oz]/[Ox]が前記コポリマーのNuc断片の同じ比よりも少なくとも2倍高い又は低い、グラジエントコポリマー。 - RaがHを表す、請求項1に記載のグラジエントコポリマー。
- 10≦m≦250である、請求項1又は2に記載のグラジエントコポリマー。
- 10≦n≦250である、請求項1~3のいずれか一項に記載のグラジエントコポリマー。
- 各R21が独立して、任意選択で置換されたC1~9アルキルを表す、請求項1~4のいずれか一項に記載のグラジエントコポリマー。
- 各R11が独立して、任意選択で置換されたC1~9アルキル又はシクロプロピルを表す、請求項1~5のいずれか一項に記載のグラジエントコポリマー。
- 請求項1に記載のグラジエントコポリマーを調製する方法であって、前記方法が、2位が置換されていてもよい2-オキサゾリン及び2位が置換されていてもよい2-オキサジンを3:97~97:3の範囲のモル比で含むモノマー反応混合物のカチオン性開環重合を含み、前記2-オキサゾリンの2位の任意選択の置換基が、請求項1に規定されたR 11 であり、前記2-オキサジンの2位の任意選択の置換基が、請求項1に規定されたR 21 である、方法。
- カチオン性開環重合が、ハロゲン化アルキル、スルホン酸アルキル、ハロゲン化アシル、オキサゾリニウム塩又はスルホン酸から選択されるカチオン性重合開始剤の存在下で行われる、請求項7に記載の方法。
- 反応混合物中で形成されるグラジエントコポリマーがペンダントアシル残基の少なくとも50%を除去することによって加水分解される、請求項7又は8に記載の方法。
- 請求項1~6のいずれか一項に記載のグラジエントコポリマー及び前記コポリマーに非共有結合される薬物を含むミセル薬物送達システム。
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