JP6828056B2 - 抗her2抗体−薬物抱合体およびその使用 - Google Patents
抗her2抗体−薬物抱合体およびその使用 Download PDFInfo
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- JP6828056B2 JP6828056B2 JP2018560708A JP2018560708A JP6828056B2 JP 6828056 B2 JP6828056 B2 JP 6828056B2 JP 2018560708 A JP2018560708 A JP 2018560708A JP 2018560708 A JP2018560708 A JP 2018560708A JP 6828056 B2 JP6828056 B2 JP 6828056B2
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Description
Lはなしか、前記抗体と前記薬物を連結するリンカーである。
Dは腫瘍細胞を抑制する小分子薬物である。
nは前記抗体に抱合した前記薬物の数である。
「−」は結合またはリンカーである。)
波線はLとの連結部位を表す。
XはCH2N3または
Ab、D、nは前記の通りである。
波線は抗体との連結部位を表す。)
ZV0201、ZV0202、ZV0203、ZV0204、ZV0205、ZV0230 、ZV0207、ZV0231、ZV0232からなる群から選ばれる。
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLLYSASYRYTGVPSRFSGSGSGTDYTLTISSLQPEDFATYYCQQYYIYPYTFGGGTKLEIKRT(配列番号2)、
EIVLTQSPGTLSLSPGERATLSCKASQDVSIGVAWYQQKPGQAPRLLIYSASYRYTGIPDRFSGSGSGTDFTLTISRLEPEDFAVYYCQQYYIYPYTFGGGTKLEIKRT(配列番号3)、
EIVMTQSPATLSVSPGERATLSCKASQDVSIGVAWYQQKPGQAPRLLIYSASYRYTGIPARFSGSGSGTEFTLTISSLQSEDFAVYYCQQYYIYPYTFGGGTKLEIKRT(配列番号4)、
EIVMTQSPPTLSLSPGERVTLSCKASQDVSIGVAWYQQKPGQAPRLLIYSASYRYTSIPARFSGSGSGTDFTLTISSLQPEDFAVYYCQQYYIYPYTFGGGTKLEIKRT(配列番号5)、
AIRMTQSPSSFSASTGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISCLQSEDFATYYCQQYYIYPYTFGGGTKLEIKRT(配列番号6)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTFTISSLQPEDIATYYCQQYYIYPYTFGGGTKLEIKRT(配列番号7)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKVPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCQQYYIYPYTFGGGTKLEIKRT(配列番号8)、
AIQLTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGGGTKLEIKRT(配列番号9)、
DIQMTQSPSTLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTEFTLTISSLQPDDFATYYCQQYYIYPYTFGGGTKLEIKRT(配列番号10)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号11)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号12)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号13)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号14)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号15)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号16)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号17)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号18)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号19)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号20)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号21)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号22)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号23)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号24)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号25)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号26)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号27)、
DIQMTQSPSSLSASVGDRVTITCKASQDVSIGVAWYQQKPGKAPKLLIYSASYRYTGVPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYYIYPYTFGQGTKVEIK(配列番号28)、
RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC(配列番号29)である。
EVQLVESGGGLVQPGGSLRLSCAASGFTFTDYTMDWVRQAPGKGLEWVADVNPNSGGSIYNQRFKGRFTLSVDRSKNTLYLQMNSLRAEDTAVYYCARNLGPSFYFDYWGQGTLVTVSS(配列番号31)、
EVQLVESGGGLVQPGGSLRLSCAASGFTFTDYTMDWVRQAPGKGLEWVADVNPNSGGSIYNQRFKGRFTLSVDRSKNTLYLQMNSLRAEDTAVYYCARNLGPSFYFDYWGQGTLVTVSS(配列番号32)、
EVQLVESGGGLVQPGGSLRLSCAASGFTFTDYTMDWVRQAPGKGLEWVADVNPNSGGSIYNQRFKGRFTLSVDRSKNTLYLQMNSLRAEDTAVYYCARNLGPSFYFDYWGQGTLVTVSS(配列番号33)、
EVQLVESGGGLVQPGGSLRLSCAASGFTFTDYTMDWVRQAPGKGLEWVADVNPNSGGSIYNQRFKGRFTLSVDRSKNTLYLQMNSLRAEDTAVYYCARNLGPSFYFDYWGQGTLVTVSS(配列番号34)、
EVQLVESGGGLVQPGGSLRLSCAASGFTFTDYTMDWVRQAPGKGLEWVADVNPNSGGSIYNQRFKGRFTLSVDRSKNTLYLQMNSLRAEDTAVYYCARNLGPSFYFDYWGQGTLVTVSS(配列番号35)、
EVQLVESGGGLVQPGGSLRLSCAASGFTFTDYTMDWVRQAPGKGLEWVADVNPNSGGSIYNQRFKGRFTLSVDRSKNTLYLQMNSLRAEDTAVYYCARNLGPSFYFDYWGQGTLVTVSS(配列番号36)、
EVQLVESGGGLVQPGGSLRLSCAASGFTFTDYTMDWVRQAPGKGLEWVADVNPNSGGSIYNQRFKGRFTLSVDRSKNTLYLQMNSLRAEDTAVYYCARNLGPSFYFDYWGQGTLVTVSS(配列番号37)、
EVQLVESGGGLVQPGGSLRLSCAASGFTFTDYTMDWVRQAPGKGLEWVADVNPNSGGSIYNQRFKGRFTLSVDRSKNTLYLQMNSLRAEDTAVYYCARNLGPSFYFDYWGQGTLVTVSS(配列番号38)、
EVQLVESGGGLVQPGGSLRLSCAASGFTFTDYTMDWVRQAPGKGLEWVADVNPNSGGSIYNQRFKGRFTLSVDRSKNTLYLQMNSLRAEDTAVYYCARNLGPSFYFDYWGQGTLVTVSS(配列番号39)、
EVQLVESGGGLVQPGGSLRLSCAASGFTFTDYTMDWVRQAPGKGLEWVSDVNPNSGGSIYNQRFKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCAKNLGPSFYFDYWGQGTTLTVSS(配列番号40)、
EVQLVESGGGLVQPGGSLRLSCAASGFTFTDYTMSWVRQAPGKGLEWVSDVNPNSGGSYYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCAKNLGPSFYFDYWGQGTTLTVSS(配列番号41)、
QVQLVQSGSELKKPGASVKVSCKASGFTFTDYTMDWVRQAPGQGLEWMGDVNPNSGGSIYNQRFKGRFVFSLDTSVSMAYLQISSLKAEDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号42)、
QVQLVQSGSELKKPGASVKVSCKASGFTFTDYTMNWVRQAPGQGLEWMGDVNPNSGGSTYAQGFTGRFVFSLDTSVSMAYLQISSLKAEDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号43)、
QMQLVQSGPEVKKPGTSVKVSCKASGFTFTDYTMDWVRQARGQRLEWIGDVNPNSGGSIYNQRFKGRVTITRDMSTSTAYMELSSLRSEDTAVYYCAANLGPSFYFDYWGQGTTLTVSS(配列番号44)、
QMQLVQSGPEVKKPGTSVKVSCKASGFTFTDYTMQWVRQARGQRLEWIGDVNPNSGGSNYAQKFQERVTITRDMSTSTAYMELSSLRSEDTAVYYCAANLGPSFYFDYWGQGTTLTVSS(配列番号45)、
QVQLVQSGAEVKKPGASVKVSCKVSGFTFTDYTMDWVRQAPGKGLEWMGDVNPNSGGSIYNQRFKGRVTMTEDTSTDTAYMELSSLRSEDTAVYYCATNLGPSFYFDYWGQGTTLTVSS(配列番号46)、
QVQLVQSGAEVKKPGASVKVSCKVSGFTFTDYTMHWVRQAPGKGLEWMGDVNPNSGGSIYAQKFQGRVTMTEDTSTDTAYMELSSLRSEDTAVYYCATNLGPSFYFDYWGQGTTLTVSS(配列番号47)、
QVQLVQSGAEVKKPGSSVKVSCKASGFTFTDYTMDWVRQAPGQGLEWMGDVNPNSGGSIYNQRFKGRVTITADKSTSTAYMELSSLRSEDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号48)、
QVQLVQSGAEVKKPGSSVKVSCKASGFTFTDYTISWVRQAPGQGLEWMGDVNPNSGGSNYAQKFQGRVTITADKSTSTAYMELSSLRSEDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号49)、
QVQLVQSGAEVKKPGASVKVSCKASGFTFTDYTMDWVRQAPGQRLEWMGDVNPNSGGSIYNQRFKGRVTITRDTSASTAYMELSSLRSEDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号50)、
QVQLVQSGAEVKKPGASVKVSCKASGFTFTDYTMHWVRQAPGQRLEWMGDVNPNSGGSKYSQKFQGRVTITRDTSASTAYMELSSLRSEDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号51)、
QVQLVQSGAEVKKPGASVKVSCKASGFTFTDYTMDWVRQAPGQGLEWMGDVNPNSGGSIYNQRFKGRVTMTRDTSISTAYMELSRLRSDDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号52)、
QVQLVQSGAEVKKPGASVKVSCKASGFTFTDYTMHWVRQAPGQGLEWMGDVNPNSGGSNYAQKFQGRVTMTRDTSISTAYMELSRLRSDDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号53)、
QVQLVQSGAEVKKPGASVKVSCKASGFTFTDYTMDWVRQATGQGLEWMGDVNPNSGGSIYNQRFKGRVTMTRNTSISTAYMELSSLRSEDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号54)、
QVQLVQSGAEVKKPGASVKVSCKASGFTFTDYTINWVRQATGQGLEWMGDVNPNSGGSGYAQKFQGRVTMTRNTSISTAYMELSSLRSEDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号55)、
QVQLVQSGAEVKKPGASVKVSCKASGFTFTDYTMDWVRQAPGQGLEWMGDVNPNSGGSIYNQRFKGRVTMTRDTSTSTVYMELSSLRSEDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号56)、
QVQLVQSGAEVKKPGASVKVSCKASGFTFTDYTMHWVRQAPGQGLEWMGDVNPNSGGSSYAQKFQGRVTMTRDTSTSTVYMELSSLRSEDTAVYYCARNLGPSFYFDYWGQGTTLTVSS(配列番号57)、
ASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG(配列番号58)である。
Dは腫瘍細胞を抑制する小分子薬物である。
Lは前記抗体と前記薬物を連結するリンカーである。)
波線はLとの連結部位を表す。
XはCH2N3または
Ab、D、nは前記の通りである。
波線は抗体との連結部位を表す。)
ZV0201、ZV0202、ZV0203、ZV0204、ZV0205、ZV0230 、ZV0207、ZV0231、ZV0232からなる群から選ばれる。
カルボキシ化合物をジクロロメタンまたはN,N-ジメチルホルムアミドに溶解させ、1.5当量のN-ヒドロキシスクシンイミド、1.5当量のEDCIを入れた。カルボキシ化合物が完全に消耗されるまで、反応液を室温で1時間撹拌した。RP-HPLCで反応過程をモニタリングした。ジクロロメタンで反応液を希釈し、そしてクエン酸(10%溶液)と飽和食塩水で有機相を洗浄した。有機相を分離して乾燥し、HPLCまたは中圧順相クロマトグラフィーによって精製し、相応する活性エステルを得た。
化合物2(261 mg, 0.52 mmol)を6 mLのDMFに溶解させ、さらにHATU(217 mg, 0.57 mmol)、DIEA(362 μL, 2.08 mmol)、およびアミノ化合物1(213 mg, 0.52 mmol)を入れた。30 分間撹拌し、さらに400 μLのピペリジンを入れ、続いて10分間撹拌した。反応液を濃縮してそのままHPLCによって精製して化合物3(171 mg、60%)を得た。 MS m/z 548.3 (M+H)。
化合物4(37 mg, 0.15 mmol)を4 mLのDMFに溶解させ、さらにHATU(59 mg, 0.15 mmol)、DIEA(108 μL, 2, 0.6 mmol)、およびアミノ化合物3(102 mg, 0.15 mmol)を入れた。反応液を30分間撹拌した後、減圧で乾燥まで蒸発させ、さらに2 mLのジクロロメタンに溶解させ、1 mLのTFAを入れて10 分間撹拌した。反応液を減圧で乾燥まで蒸発させ、そしてHPLCによって精製して化合物5(94 mg、78%)を得た。 MS m/z 673.4 (M+H)。
化合物6(85 mg, 0.12 mmol)を2 mLのDMFに溶解させ、さらにHATU(48 mg, 0.12 mmol)、DIEA(83 μL, 0.48 mmol)およびアミノ化合物5(94 mg, 0.12 mmol)を入れた。反応液を続いて30 分間撹拌した後、さらに90 mgのNaOHの1 mL水溶液を入れて30分間撹拌した。反応液を回転乾燥し、そのままHPLCによって精製して化合物7(86 mg、58%)を得た。 MS m/z 1239.7 (M+H)。
化合物6(1000 mg, 1.67 mmol)を20 mLのDMFに溶解させ、HATU(640 mg, 1.68 mmol)、DIEA(870 μL, 5.00 mmol)、およびアミノ化合物12(535 mg, 1.67 mmol)を入れた。反応液を30 分間撹拌し、反応液を乾燥まで濃縮した後、HPLCによって精製して化合物13(1140 mg、70%)を得た。 MS m/z 865.5 (M+H)。
化合物13(500 mg, 0.57 mmol)を10 mLのDMAに溶解させ、炭酸ビス(p-ニトロフェニル)(210 mg, 0.69 mmol)、およびDIEA(35 μL, 0.2 mmol)を入れた。反応液を18 時間撹拌し、100 mLのエチルエーテルを入れ、沈殿が析出し、沈殿を収集し、乾燥後化合物14(500 mg, 85%)を得た。 MS m/z 1030.6 (M+H)。
化合物14(0.1 mmol)のテトラヒドロフラン(3 mL)溶液に化合物15(0.15 mmol, 67 mg)のアセトニトリル/水(1/1, v/v, 1 mL)溶液を入れ、さらにDIEA(50 μL)を入れた。反応液を30 分間撹拌した後、酸型化して濃縮し、残留物をHPLCによって精製して白色固体の化合物16(87 mg)を得た。MS m/z 1243.6 [M+H]+。
化合物21の合成:
化合物19のTFA塩(1 mmol)、化合物20(1 eq)、HOAt(3 eq)、ジクロロメタン(20 mL)、DIEA(6 eq)、およびDIC(2 eq)を丸底フラスコに入れ、16時間撹拌した後20 mLのジクロロメタンで反応液を希釈し、水で洗浄し、有機層を乾燥して回転乾燥して化合物3を得たが、次の工程にそのまま使用した。MS m/z 1496。5 (M+H)。
化合物21(1 mmol)、20 mLのエタノールおよび10 mLの2M NaOH水溶液を丸底フラスコに入れ、3時間撹拌した。酢酸で中性に調整した後、HPLCによって精製して化合物22を得た。 MS m/z 1482.3 (M+H)。
化合物22(0.5 mmol)を10 mLのジクロロメタン、10 mLのTFAおよび1mLのトリイソプロピルシランに溶解させて1時間撹拌した。反応液を濃縮してHPLCによって精製して化合物23を得た。 MS m/z 1239.8 (M+H)。
丸底フラスコに化合物19のTFA塩(1 mmol)、化合物24(1 eq)、HOAt(3 eq)、ジクロロメタン(20 mL)、DIEA(6 eq)、およびDIC(2 eq)を入れた。反応液を16時間撹拌した後、20 mLのジクロロメタンで反応液を希釈し、20 mLの水で洗浄し、減圧で乾燥まで蒸発させてガラス状の固体を得たが、次の工程にそのまま使用した。得られた固体を10 mLのジクロロメタン、10 mLのTFAおよび1mLのトリイソプロピルシランに溶解させて1時間撹拌した。反応液を減圧で乾燥まで蒸発させてHPLCによって精製して化合物6を得た。 MS m/z 1351.5 (M+H)。
化合物25(0.5 mmol)、20 mLのアセトニトリル、5 mLの水および10 mLの飽和NaHCO3水溶液にNa2S2O4(4 eq)を入れて20 分間撹拌した。反応液を濃縮してHPLCによって精製して化合物7を得た。 MS m/z 1321.7 (M+H)。
化合物26(0.4 mmol)を10 mLのアセトニトリルに溶解させて1,4-ジブロモ-2,3-ブタンジオン(3 eq)を入れた。反応液を20 分間撹拌した後、HPLCによって精製して化合物27を得た。 MS m/z 1527.6 (M+H)。
実施例8 化合物33の製造
HATU(110 mg, 0.29 mmol)、DIEA(181 μL, 1.04 mmol)および化合物34(83 mg, 0.26 mmol)を順に化合物2(131 mg, 0.26 mmol,4ml DMFに溶解させたもの)の溶液に入れた。30 分間撹拌し、真空の条件において溶液を除去した。残留物を2 mLのDCMに溶解させた後、1 mLのTFAを入れて10 分間撹拌した。真空の条件において溶液を除去した後、HPLCによって精製して化合物35(118 mg,67%)を得た。MS m/z 698.4 (M+H)。
HATU(68 mg, 0.17 mmol)、DIEA(118 μL, 0.68 mmol)および化合物35(118 mg, 0.17 mmol)を順に化合物6(125 mg, 0.17 mmol,4ml DMFに溶解させたもの)の溶液に入れた。30分間撹拌し、さらに400 のピペリジンを入れ、続いて10分間撹拌した。真空の条件において溶液を除去した後、HPLCによって精製して化合物36(196 mg,87%)を得た。MS m/z 1056.6 (M+H)。
HATU(27 mg, 0.072 mmol)、DIEA(50 μL, 0.288 mmol)および化合物36(85 mg, 0.067 mmol)を順に化合物4(17 mg, 0.072 mmol,2ml DMFに溶解させたもの)の溶液に入れた。30分間撹拌し、1 mLの水酸化ナトリウム溶液(1 M)を入れ、続いて60分間撹拌した。HPLCによって精製して化合物37(76 mg,91%)を得た。MS m/z 1267.7 (M+H)。
K-Lock方法は、ZV0201を例として、抗体(たとえば配列番号1で示される軽鎖可変領域と配列番号29で示される軽鎖定常領域および配列番号58で示される重鎖可変領域と配列番号4で示される重鎖定常領域を有する抗体)は穏和な溶液系において直接L-Dと連結してもよい。室温25℃(範囲は4〜37℃でもよい)で、10mg/mlの抗体(リン酸緩衝液PBSに濃度範囲5〜30mg/mlで溶解させたもの)に抗体の6〜10倍のモル量のL-D(DMAに体積がPBSの10%を超えないように溶解させたもの)を入れて3〜16h反応させ、限外ろ過で過剰量の小分子L-Dを除去した。抗体-薬物抱合体を疎水性クロマトグラフィーカラム(HIC)にかけ、0.75〜1 Mの硫酸アンモニウム溶液で平衡化した後、さらに25 mMの硫酸アンモニウム溶液で溶離させ、抱合数が2の溶離液を合併してPBSで置換し、抱合数が2の抗HER2抗体-薬物抱合体を得た。
親和性検出の実験手順は以下の通りである。
本実施例において、本発明の抗体-薬物抱合体のHER2陽性細胞に対する抑制活性を検出した。本実施例における腫瘍細胞株はいずれも米国ATCCから購入された。
抗HER2抗体-薬物抱合体の体内抗腫瘍活性の検出手順は以下の通りである。
Claims (10)
- 構造が式Iで表されることを特徴とする抗体-薬物抱合体またはその薬学的に許容される塩
(ここで、Abは前記抗体である。
Lは、なし又は前記抗体と後記薬物とを連結するリンカーである。
Dは、腫瘍細胞を抑制する小分子薬物である。
nは、前記抗体-薬物抱合体における前記薬物の平均抱合数で、かつ1.8≦n≦2である。
「−」は結合である。)
であって、
前記抗体-薬物抱合体の軽鎖定常領域にEKHモチーフが含まれ、かつ前記薬物分子が前記モチーフのリシン(K)部位に連結し、
前記抗体は、ペルツズマブまたはそのバイオシミラーであることを特徴とする、抗体-薬物抱合体又はその塩。 - Dの構造が、下記式IIで表されることを特徴とする、請求項1に記載の抗体-薬物抱合体又はその塩;
(式IIにおいて、YはO、またはNHである。
波線はLとの連結部位を表す。
XはCH2N3または
である。)。 - 構造が、式IIIで表されることを特徴とする請求項1に記載の抗体-薬物抱合体又はその塩;
(式IIIにおいて、前記L1-L2の構造はL-1、L-2、およびL-3からなる群から選ばれる。
ここで、L21、L22、L23は独立にVal-Cit、-(CH 2 ) n -, -(CH 2 CH 2 O) n -、Ala-Ala-Asn、またはこれらの組み合わせからなる群から選ばれるリンカーである。
Ab、D、nは前記の通りである。
波線は抗体との連結部位を表す。)。 - ZV0201、ZV0202、ZV0203、ZV0204、ZV0205、ZV0230 、ZV0207、ZV0231、ZV0232からなる群から選ばれることを特徴とする、請求項1に記載の抗体-薬物抱合体又はその塩;
(ここで、抱合体ZV0203の構造は以下に示す。
抱合体ZV0230の構造は以下に示す。
抱合体ZV0201の構造は以下に示す。
抱合体ZV0207の構造は以下に示す。
抱合体ZV0231の構造は以下に示す。
抱合体ZV0232の構造は以下に示す。
抱合体ZV0202の構造は以下に示す。
抱合体ZV0204の構造は以下に示す。
抱合体ZV0205の構造は以下に示す。
- 前記抗体の重鎖可変領域の配列は配列番号30〜57から選ばれ、及び/または、前記抗体の軽鎖可変領域の配列は配列番号1〜28からなる群から選ばれる、ことを特徴とする請求項1に記載の抗体-薬物抱合体又はその塩。
- 請求項1に記載の抗体-薬物抱合体又はその塩と、薬学的に許容される担体とを含むことを特徴とする薬物組成物。
- 抗腫瘍の薬物の製造に用いられることを特徴とする、請求項1に記載の抗体-薬物抱合体又はその塩の使用。
- 請求項1に記載の抗体-薬物抱合体又はその塩を製造する方法であって、
抗体および遊離のリンカーを含む薬物分子を含む反応系を調製した後、抱合反応を行うことによって、前記抗体-薬物抱合体を得る工程を含み、
前記反応系のpHは、6.5〜8.0であることを特徴とする、製造方法。 - 前記反応系のpHは、6.8〜7.8であることを特徴とする、請求項8に記載の製造方法。
- 前記反応系のpHは、6.8〜7.2であることを特徴とする、請求項8に記載の製造方法。
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| CN201610079677.8 | 2016-02-04 | ||
| PCT/CN2017/072888 WO2017133682A1 (zh) | 2016-02-04 | 2017-02-04 | 抗her2抗体-药物偶联物及其应用 |
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| CN107857798B (zh) * | 2016-09-22 | 2021-03-23 | 联宁(苏州)生物制药有限公司 | 一种用于抗体药物偶联物的毒素及其制备方法 |
| WO2018192407A1 (zh) | 2017-04-19 | 2018-10-25 | 四川科伦博泰生物医药股份有限公司 | 细胞毒素和偶联物、其用途和制备方法 |
| CN119241554A (zh) | 2017-12-15 | 2025-01-03 | 四川科伦博泰生物医药股份有限公司 | 生物活性物偶联物及其制备方法和用途 |
| CA3108044A1 (en) | 2018-07-31 | 2020-02-06 | Daiichi Sankyo Company, Limited | Treatment of metastatic brain tumor by administration of antibody-drug conjugate |
| US20200289663A1 (en) * | 2018-08-29 | 2020-09-17 | Remegen, Ltd | Use of anti-her2 antibody-drug conjugate in treating urothelial carcinoma |
| WO2021143741A1 (zh) * | 2020-01-15 | 2021-07-22 | 北京海步医药科技有限公司 | 靶向多肽-药物缀合物及其用途 |
| KR20240000575A (ko) * | 2021-04-26 | 2024-01-02 | 수안주 바이오파마슈티컬 컴퍼니 리미티드 | 이중특이성 항체약물접합체 |
| CN116997363A (zh) * | 2021-05-07 | 2023-11-03 | 四川科伦博泰生物医药股份有限公司 | 抗体药物偶联物治疗癌症的方法及用途 |
| CN117362440A (zh) * | 2022-06-30 | 2024-01-09 | 复旦大学 | Her2纳米抗体及偶联物的制备方法和用途 |
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