【结 构 式】 ![]() |
【药物名称】HKI-9924129 【化学名称】(2S,5R,6R)-6-[2(R)-[Nalpha,Nepsilon-Bis(2,3-diacetoxybenzoyl)-L-lysyl-Ngamma-(benzoyloxy)-Ngamma-methyl-L-glutaminylamino]-2-phenylacetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid sodium salt 【CA登记号】 【 分 子 式 】C57H60N7NaO19S 【 分 子 量 】1202.20305 |
【开发单位】Grünenthal (Originator), Hans Knöll Institute Natural Prod. Res. (Originator) 【药理作用】Antibiotics, ANTIINFECTIVE THERAPY, Penicillins |
合成路线1
Acylation of L-lysine (I) with 2,3-diacetoxybenzoyl chloride (II) provides the dibenzoyl lysine derivative (III). After activation of (III) as the corresponding mixed anhydride with isobutyl chloroformate, condensation with alpha-benzyl L-glutamate (IV) yields the dipeptide compound (V). This is further coupled with N-(benzoyloxy) methylamine (VI), via the mixed anhydride with isobutyl chloroformate, to furnish hydroxamate (VII).
【1】 Wittmann, S.; et al.; New synthetic siderophores and their beta-lactam conjugates based on diamino acids and dipeptides. Bioorg Med Chem 2002, 10, 6, 1659. |
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) | 20927 | L-lysine | 56-87-1 | C6H14N2O2 | 详情 | 详情 |
(II) | 58506 | 2-(acetyloxy)-3-(chlorocarbonyl)phenyl acetate | C11H9ClO5 | 详情 | 详情 | |
(III) | 58517 | (2S)-2,6-bis{[2,3-bis(acetyloxy)benzoyl]amino}hexanoic acid | C28H30N2O12 | 详情 | 详情 | |
(IV) | 42338 | (4S)-4-amino-5-(benzyloxy)-5-oxopentanoic acid | 13030-09-6 | C12H15NO4 | 详情 | 详情 |
(V) | 58518 | (4S)-5-(benzyloxy)-4-[((2S)-2,6-bis{[2,3-bis(acetyloxy)benzoyl]amino}hexanoyl)amino]-5-oxopentanoic acid | C40H43N3O15 | 详情 | 详情 | |
(VI) | 58519 | 1-{[(methylamino)oxy]carbonyl}benzene | C8H9NO2 | 详情 | 详情 | |
(VII) | 58520 | benzyl (2S)-5-[(benzoyloxy)(methyl)amino]-2-[((2S)-2,6-bis{[2,3-bis(acetyloxy)benzoyl]amino}hexanoyl)amino]-5-oxopentanoate | C48H50N4O16 | 详情 | 详情 |
合成路线2
Catalytic hydrogenolysis of benzyl ester (VII) affords carboxylic acid (VIII) (1). Then, coupling of acid (VIII) with ampicillin (IX) using isobutyl chloroformate provides the target adduct, which is finally converted to the title sodium salt upon treatment with sodium 2-ethylhexanoate in EtOAc.
【1】 Wittmann, S.; et al.; New synthetic siderophores and their beta-lactam conjugates based on diamino acids and dipeptides. Bioorg Med Chem 2002, 10, 6, 1659. |
【2】 Heinisch, L.; Mollmann, U.; Wittmann, S. (Grunenthal GmbH); Siderophore antibiotic conjugates with tetra- or hexadentate iron chelators on the basis of amino acids or peptides, method for producing them and the use thereof. DE 10111163; WO 0270017 . |
中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
---|---|---|---|---|---|---|
(VII) | 58520 | benzyl (2S)-5-[(benzoyloxy)(methyl)amino]-2-[((2S)-2,6-bis{[2,3-bis(acetyloxy)benzoyl]amino}hexanoyl)amino]-5-oxopentanoate | C48H50N4O16 | 详情 | 详情 | |
(VIII) | 58521 | (2S)-5-[(benzoyloxy)(methyl)amino]-2-[((2S)-2,6-bis{[2,3-bis(acetyloxy)benzoyl]amino}hexanoyl)amino]-5-oxopentanoic acid | C41H44N4O16 | 详情 | 详情 | |
(IX) | 31107 | (2S,5R,6R)-6-[[(2R)-2-amino-2-phenylethanoyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid | 69-53-4 | C16H19N3O4S | 详情 | 详情 |