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【结 构 式】

【药物名称】MBX-36, SHU-9119

【化学名称】N-Acetyl-L-norleucyl-L-aspartyl-L-histidyl-3-(2-naphthyl)-D-alanyl-L-arginyl-L-tryptophyl-L-lysinamide cyclic C-4.2-N-6.7-amide

【CA登记号】168482-23-3

【 分 子 式 】C54H71N15O9

【 分 子 量 】1074.26307

【开发单位】Oregon Health and Science University (Originator), University of Arizona (Originator)

【药理作用】METABOLIC DRUGS, Treatment of Eating Disorders, Treatment of Nutritional Disorders, Melanocortin MC1 Agonists, Melanocortin MC3 Antagonists, Melanocortin MC4 Antagonists, Melanocortin MC5 Agonists

合成路线1

The peptide was synthesized by a solid-phase method using a p-methylbenzhydrylamine resin to which N1-Boc-N6-Fmoc-L-lysine (I) was coupled giving (II). To this solid phase the following protected amino acids Nalpha-Boc-N1-formyl-L-tryptophan (III), Nalpha-Boc-Nomega-Tos-L-arginine (V), Nalpha-Boc-D-(2-naphthyl)alanine (VII), Nalpha-Boc-Npi-L-histidine (IX) and Nalpha-Boc-Ogamma-Fm-L-aspartic acid (XI) were sequentially coupled yielding resins (IV), (VI), (VIII), (X) and (XII).

1 Al-Obeidi, F.A.; Sharma, S.D.; de L. Castrucci, A.; Kesterson, R.A.; Lu, D.; Hadley, M.E.; Cone, R.D.; Hruby, V.J.; Cyclic lactam alpha-melanotropin analogues of Ac-Nle4-cyclo[Asp5, D-Phe7,Lys10] alpha-melanocyte-stimulating hormone-(4-10)-NH2 with bulky aromatic amino acids at position 7 show high antagonist potency and selectivity at specific melanocortin receptors. J Med Chem 1995, 38, 18, 3454.
2 Hadley, M.E.; Hruby, V.J.; Sharma, S.D. (University of Arizona); Peptides having potent antagonist and agonist bioactivities at melanocortin receptors. US 5731408 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 25476 (2S)-2-[(tert-butoxycarbonyl)amino]-6-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]hexanoic acid 84624-27-1 C26H32N2O6 详情 详情
(II) 25477 9H-fluoren-9-ylmethyl (5S)-6-amino-5-[(tert-butoxycarbonyl)amino]-6-oxohexylcarbamate C26H33N3O5 详情 详情
(III) 25478 (2S)-2-[(tert-butoxycarbonyl)amino]-3-(1-formyl-1H-indol-3-yl)propionic acid C17H20N2O5 详情 详情
(IV) 25479 9H-fluoren-9-ylmethyl (5S)-6-amino-5-[[(2S)-2-[(tert-butoxycarbonyl)amino]-3-(1-formyl-1H-indol-3-yl)propanoyl]amino]-6-oxohexylcarbamate C38H43N5O7 详情 详情
(V) 19064 (2S)-2-[(tert-butoxycarbonyl)amino]-5-[(imino[[(4-methylphenyl)sulfonyl]amino]methyl)amino]pentanoic acid C18H28N4O6S 详情 详情
(VI) 25480 tert-butyl (1S,4S,7S)-7-(aminocarbonyl)-15-(9H-fluoren-9-yl)-4-[(1-formyl-1H-indol-3-yl)methyl]-1-[3-[(imino[[(4-methylphenyl)sulfonyl]amino]methyl)amino]propyl]-2,5,13-trioxo-14-oxa-3,6,12-triazapentadec-1-ylcarbamate C51H61N9O10S 详情 详情
(VII) 23498 (2R)-2-[(tert-butoxycarbonyl)amino]-3-(2-naphthyl)propionic acid C18H21NO4 详情 详情
(VIII) 25481 tert-butyl (1R,4S,7S,10S)-10-(aminocarbonyl)-18-(9H-fluoren-9-yl)-7-[(1-formyl-1H-indol-3-yl)methyl]-4-[3-[(imino[[(4-methylphenyl)sulfonyl]amino]methyl)amino]propyl]-1-(2-naphthylmethyl)-2,5,8,16-tetraoxo-17-oxa-3,6,9,15-tetraazaoctadec-1-ylcarbamate C64H72N10O11S 详情 详情
(IX) 25482 (2S)-3-[1-[(benzyloxy)methyl]-1H-imidazol-5-yl]-2-[(tert-butoxycarbonyl)amino]propionic acid 83468-83-1 C19H25N3O5 详情 详情
(X) 25483 9H-fluoren-9-ylmethyl (5S,8S,11S,14R,17S)-17-amino-5-(aminocarbonyl)-18-[1-[(benzyloxy)methyl]-1H-imidazol-5-yl]-8-[(1-formyl-1H-indol-3-yl)methyl]-11-[3-[(imino[[(4-methylphenyl)sulfonyl]amino]methyl)amino]propyl]-14-(2-naphthylmethyl)-7,10,13,16-tetraoxo-6,9,12,15-tetraazaoctadec-1-ylcarbamate C73H79N13O11S 详情 详情
(XI) 25484 (2S)-2-[(tert-butoxycarbonyl)amino]-4-[[(9H-fluoren-9-ylmethoxy)carbonyl]oxy]-4-oxobutyric acid C24H25NO8 详情 详情
(XII) 25485 N-(Tert-butoxycarbonyl)-[4-O-(9-fluorenylmethoxycarbonyl)]-L-aspartyl-[N-tau-(benzyloxymethyl)]-D-histidyl-D-2-naphthylalanyl-(N-omega-tosyl)-L-arginyl-(N-1-formyl)-D-tryptophyl-[N-6-(9-fluorenylmethoxycarbonyl)]-L-leucinamide; N-(Tert-butoxycarbonyl)-[4-O-(9-fluorenylmethoxycarbonyl)]-L-aspartyl-[N-tau-(benzyloxymethyl)]-D-histidyl-D-2-naphthylalanyl-(N-omega-tosyl)-L-arginyl-(N-1-formyl)-D-tryptophyl-[N-6-(9-fluorenylmethoxycarbonyl)]-L-leucinamide C97H102N14O18S 详情 详情

合成路线2

The coupling sequences were continued with Nalpha-Boc-L-norleucine (XIII) to afford resin (XIV). Elimination of the Fmoc and OFm protecting groups of (XIV) was performed with piperidine in NMP allowing the formation of the lactam ring by cyclization with BOP and DIEA in NMP providing the macrocyclic lactam (XV).

1 Al-Obeidi, F.A.; Sharma, S.D.; de L. Castrucci, A.; Kesterson, R.A.; Lu, D.; Hadley, M.E.; Cone, R.D.; Hruby, V.J.; Cyclic lactam alpha-melanotropin analogues of Ac-Nle4-cyclo[Asp5, D-Phe7,Lys10] alpha-melanocyte-stimulating hormone-(4-10)-NH2 with bulky aromatic amino acids at position 7 show high antagonist potency and selectivity at specific melanocortin receptors. J Med Chem 1995, 38, 18, 3454.
2 Hadley, M.E.; Hruby, V.J.; Sharma, S.D. (University of Arizona); Peptides having potent antagonist and agonist bioactivities at melanocortin receptors. US 5731408 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XII) 25485 N-(Tert-butoxycarbonyl)-[4-O-(9-fluorenylmethoxycarbonyl)]-L-aspartyl-[N-tau-(benzyloxymethyl)]-D-histidyl-D-2-naphthylalanyl-(N-omega-tosyl)-L-arginyl-(N-1-formyl)-D-tryptophyl-[N-6-(9-fluorenylmethoxycarbonyl)]-L-leucinamide; N-(Tert-butoxycarbonyl)-[4-O-(9-fluorenylmethoxycarbonyl)]-L-aspartyl-[N-tau-(benzyloxymethyl)]-D-histidyl-D-2-naphthylalanyl-(N-omega-tosyl)-L-arginyl-(N-1-formyl)-D-tryptophyl-[N-6-(9-fluorenylmethoxycarbonyl)]-L-leucinamide C97H102N14O18S 详情 详情
(XIII) 20398 (2S)-2-[(tert-butoxycarbonyl)amino]hexanoic acid C11H21NO4 详情 详情
(XIV) 25486 N-(Tert-butoxycarbonyl)-D-norleucyl-[4-O-(9-fluorenylmethoxycarbonyl)]-L-aspartyl-[N-tau-(benzyloxymethyl)]-D-histidyl-D-2-naphthylalanyl-(N-omega-tosyl)-L-arginyl-(N-1-formyl)-D-tryptophyl-[N-6-(9-fluorenylmethoxycarbonyl)]-L-leucinamide; N-(Tert-butoxycarbonyl)-D-norleucyl-[4-O-(9-fluorenylmethoxycarbonyl)]-L-aspartyl-[N-tau-(benzyloxymethyl)]-D-histidyl-D-2-naphthylalanyl-(N-omega-tosyl)-L-arginyl-(N-1-formyl)-D-tryptophyl-[N-6-(9-fluorenylmethoxycarbonyl)]-L-leucinamide C103H113N15O19S 详情 详情
(XV) 25487 tert-butyl (1S)-1-([[(3S,6S,9R,12S,15S,23S)-23-(aminocarbonyl)-12-([1-[(benzyloxy)methyl]-1H-imidazol-5-yl]methyl)-3-[(1-formyl-1H-indol-3-yl)methyl]-6-[3-[(imino[[(4-methylphenyl)sulfonyl]amino]methyl)amino]propyl]-9-(2-naphthylmethyl)-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18-hexaazacyclotricosan-15-yl]amino]carbonyl)pentylcarbamate C73H91N15O14S 详情 详情

合成路线3

Elimination of the Boc protecting group of (XV) with trifluoroacetic acid followed by acetylation of the free amino group with acetic anhydride yielded resin (XVI) with a terminal acetyl group. Finally, this resin was treated with FH, anisole and dithioethane to complete the deprotection process and elimnate the solid phase resin affornig the target macrocyclic peptide.

1 Al-Obeidi, F.A.; Sharma, S.D.; de L. Castrucci, A.; Kesterson, R.A.; Lu, D.; Hadley, M.E.; Cone, R.D.; Hruby, V.J.; Cyclic lactam alpha-melanotropin analogues of Ac-Nle4-cyclo[Asp5, D-Phe7,Lys10] alpha-melanocyte-stimulating hormone-(4-10)-NH2 with bulky aromatic amino acids at position 7 show high antagonist potency and selectivity at specific melanocortin receptors. J Med Chem 1995, 38, 18, 3454.
2 Hadley, M.E.; Hruby, V.J.; Sharma, S.D. (University of Arizona); Peptides having potent antagonist and agonist bioactivities at melanocortin receptors. US 5731408 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XV) 25487 tert-butyl (1S)-1-([[(3S,6S,9R,12S,15S,23S)-23-(aminocarbonyl)-12-([1-[(benzyloxy)methyl]-1H-imidazol-5-yl]methyl)-3-[(1-formyl-1H-indol-3-yl)methyl]-6-[3-[(imino[[(4-methylphenyl)sulfonyl]amino]methyl)amino]propyl]-9-(2-naphthylmethyl)-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18-hexaazacyclotricosan-15-yl]amino]carbonyl)pentylcarbamate C73H91N15O14S 详情 详情
(XVI) 25488 (3S,6S,9R,12S,15S,23S)-15-[[(2S)-2-(acetamido)hexanoyl]amino]-12-([1-[(benzyloxy)methyl]-1H-imidazol-5-yl]methyl)-3-[(1-formyl-1H-indol-3-yl)methyl]-6-[3-[(imino[[(4-methylphenyl)sulfonyl]amino]methyl)amino]propyl]-9-(2-naphthylmethyl)-2,5,8,11,14,17-hexaoxo-1,4,7,10,13,18-hexaazacyclotricosane-23-carboxamide C70H85N15O13S 详情 详情
Extended Information