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【结 构 式】

【分子编号】30985

【品名】N-methyl-3-pentanamine; N-(1-ethylpropyl)-N-methylamine

【CA登记号】

【 分 子 式 】C6H15N

【 分 子 量 】101.19184

【元素组成】C 71.22% H 14.94% N 13.84%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(XIII)

(-)-Quinic acid (I) is converted into the acetonide (II) in the usual way and its secondary alcohol is converted into the tosylate (III) by reaction with tosyl chloride and DMAP in pyridine. The dehydration of (III) with SOCl2 and pyridine in methanol yields the cyclohexenecarboxylate (IV), which is epoxidized by means of DBU inb THF affording the epoxide (V). The protection of the free hydroxy group of (V) with methoxymethyl chloride and DIPEA in dichloromethane gives the ether (VI), which is treated with sodium azide in methanol yielding the azido alcohol (VII). The reaction of (VII) with methanesulfonyl chloride and triethylamine in dichloromethane affords the mesylate (VIII), which is submitted to a reductocyclization with triphenylphosphine in in THF providing the aziridine (IX). The cleavage of the aziridine group of (IX) with sodium azide in DMF gives the amino azide (X), which is deprotected at the methoxymethyl ether by a treatment with HCl in methanol to afford the alcohol (XI). The acetylation of (XI) with acetic anhydride in pyridine gives the N,O-diacetyl derivative (XII), which is condensed with N-(1-ethylpropyl)-N-methylamine (XIII) by means of palladium tetrakis(triphenylphosphine) in THF yielding the tertiary amine (XIV). The azido group of (XIV) in then reduced with triphenylphosphine in THF/water providing the amino intermediate (XV), which is finally hydrolyzed with KOH in aqueous THF.

1 Lew, W.; Wu, H.; Mendel, D.B.; Escarpe, P.A.; Chen, X.; Laver, W.G.; Graves, B.J.; Kim, C.U.; A new series of C3-aza carbocyclic influenza neuraminidase inhibitors: Synthesis and inhibitory activity. Bioorg Med Chem Lett 1998, 8, 23, 3321.
2 Williams, M.A.; Lew, W.; Kim, C.U.; et al.; Influenza neuraminidase inhibitors possessing a novel hydrophobic interaction in the enzyme active site: Design, synthesis, and structural analysis of carbocyclic sialic acid analogues with potent anti-influenza activity. J Am Chem Soc 1997, 119, 4, 681.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
18319 Chloro(methoxy)methane; Chloromethyl methyl ether 107-30-2 C2H5ClO 详情 详情
(I) 30978 methyl (3R,5R)-1,3,4,5-tetrahydroxycyclohexanecarboxylate C8H14O6 详情 详情
(II) 30979 methyl (3aR,5R,7R,7aS)-5,7-dihydroxy-2,2-dimethylhexahydro-1,3-benzodioxole-5-carboxylate C11H18O6 详情 详情
(III) 30980 methyl (3aR,5S,7R,7aR)-5-hydroxy-2,2-dimethyl-7-[[(4-methylphenyl)sulfonyl]oxy]hexahydro-1,3-benzodioxole-5-carboxylate C18H24O8S 详情 详情
(IV) 30981 methyl (3R,4R,5R)-3,4-dihydroxy-5-[[(4-methylphenyl)sulfonyl]oxy]-1-cyclohexene-1-carboxylate C15H18O7S 详情 详情
(V) 29912 methyl (1S,5R,6R)-5-hydroxy-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate C8H10O4 详情 详情
(VI) 29913 methyl (1S,5R,6S)-5-(methoxymethoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylate C10H14O5 详情 详情
(VII) 29914 methyl (3R,4S,5R)-5-azido-4-hydroxy-3-(methoxymethoxy)-1-cyclohexene-1-carboxylate C10H15N3O5 详情 详情
(VIII) 30982 methyl (3R,4S,5R)-5-azido-3-(methoxymethoxy)-4-[[methyl(dimethylene)-lambda(6)-sulfanyl]oxy]-1-cyclohexene-1-carboxylate C13H21N3O5S 详情 详情
(IX) 29916 methyl (1R,5R,6R)-5-(methoxymethoxy)-7-azabicyclo[4.1.0]hept-3-ene-3-carboxylate C10H15NO4 详情 详情
(X) 29917 methyl (3R,4R,5S)-4-amino-5-azido-3-(methoxymethoxy)-1-cyclohexene-1-carboxylate C10H16N4O4 详情 详情
(XI) 30983 methyl (3R,4R,5S)-4-amino-5-azido-3-hydroxy-1-cyclohexene-1-carboxylate C8H12N4O3 详情 详情
(XII) 30984 methyl (3R,4R,5S)-4-(acetamido)-3-(acetoxy)-5-azido-1-cyclohexene-1-carboxylate C12H16N4O5 详情 详情
(XIII) 30985 N-methyl-3-pentanamine; N-(1-ethylpropyl)-N-methylamine C6H15N 详情 详情
(XIV) 30986 methyl (3R,4S,5S)-4-(acetamido)-5-azido-3-[(1-ethylpropyl)(methyl)amino]-1-cyclohexene-1-carboxylate C16H27N5O3 详情 详情
(XV) 30987 methyl (3R,4R,5S)-4-(acetamido)-5-amino-3-[(1-ethylpropyl)(methyl)amino]-1-cyclohexene-1-carboxylate C16H29N3O3 详情 详情
Extended Information