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【结 构 式】

【分子编号】69187

【品名】phenyl 2-bromoacetate;Phenyl bromoacetate;alpha-Phenyl Bromoacetate;Phenyl a-bromoacetate;bromoacetic acidphenyl ester

【CA登记号】620-72-4

【 分 子 式 】C8H7BrO2

【 分 子 量 】215.04638

【元素组成】C 44.68% H 3.28% Br 37.16% O 14.88%

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:(II)

Reaction of bromoacetyl bromide (I) with phenol at 80 °C gives the phenyl ester (II) , which by cyclization with (S)-(+)-phenylglycinol (III), previously treated with DIEA, in acetonitrile provides 5(S)-phenylmorpholin-2-one (IV) . Treatment of compound (IV) with HCl affords the corresponding HCl salt (V), which is reacted with NaHCO3 followed by coupling with benzodioxane-6-carboxaldehyde (VI) in refluxing EtOAc/toluene to yield the oxazine adduct (VII). Oxazine derivative (VII) can also be obtained by direct coupling of 5(S)-phenylmorpholin-2-one (IV) with aldehyde (VI) in refluxing toluene. Opening of adduct (VII) with pyrrolidine (VIII) in CH2Cl2, CHCl3 or refluxing THF followed by addition of HCl in refluxing MeOH leads to 3-(1,4-benzodioxan-6-yl)-3(R)-hydroxy-2(R)-(2-hydroxy-1-phenylethylamino)-1-(pyrrolidin-1-yl)propanone (IX), which is reduced with LiAlH4 in refluxing THF to give diol (X). Cleavage of diol (X) by means of H2 and Pd(OH)2 in the presence of either CF3COOH or HCl in MeOH or EtOH/H2O provides amine (XI), which is finally coupled with octanoic acid N-hydroxysuccinimide ester (XII) in CH2Cl2 . Ester (XII) is prepared by condensation of octanoyl chloride (XIII) with N-hydroxysuccinimide (XIV) by means of Et3N in CH2Cl2 .

1 Dellaria, J.F. Jr., Santarsiero, B.D. Enantioselective synthesis of alphaamino acid derivatives via the stereoselective alkylation of a homochiral glycine enolate synthon. J Org Chem 1989, 54(16): 3916-26.
2 Siegel, C., Hirth, B.H. (Genzyme Corp.). Synthesis of UDP-glucose:N-acylsphingosine glucosyltransferase inhibitors. CA 2453978, EP 1409467, EP 2067775, JP 2005255686, JP 2005502635, JP 2010095546, US 2003050299, US 6855830, WO 2003008399.
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) 14005 2-Bromoacetyl bromide; Bromoacetyl bromide 598-21-0 C2H2Br2O 详情 详情
(II) 69187 phenyl 2-bromoacetate;Phenyl bromoacetate;alpha-Phenyl Bromoacetate;Phenyl a-bromoacetate;bromoacetic acidphenyl ester 620-72-4 C8H7BrO2 详情 详情
(III) 10973 (2S)-2-Amino-2-phenyl-1-ethanol; (S)-2-Hydroxy-1-phenylethylamine; (S)-(+)-2-Phenylglycinol; (S)-2-Amino-2-phenyl-1-ethanol 20989-17-7 C8H11NO 详情 详情
(IV) 61798 (5S)-5-phenyl-2-morpholinone;5(S)-phenylmorpholin-2-one;(5S)-3,4,5,6-Tetrahydro-5-phenyl-4(H)-1,4-oxazin-2-one 144896-92-4 C10H11NO2 详情 详情
(V) 69188 5(S)-phenylmorpholin-2-one hydrochloride   C10H11NO2.HCl 详情 详情
(VI) 61797 2,3-dihydro-1,4-benzodioxine-6-carbaldehyde; 1,4-Benzodioxan-6-carboxaldehyde; 3,4-ethylenedioxybenzaldehyde ;benzodioxane-6-carboxaldehyde 29668-44-8 C9H8O3 详情 详情
(VII) 61799 (1S,3S,5S)-1,3-di(2,3-dihydro-1,4-benzodioxin-6-yl)-5-phenyltetrahydro-8H-[1,3]oxazolo[4,3-c][1,4]oxazin-8-one C28H25NO7 详情 详情
(VIII) 11376 Pyrrolidine 123-75-1 C4H9N 详情 详情
(IX) 61800 (2R,3R)-3-(2,3-dihydro-1,4-benzodioxin-6-yl)-3-hydroxy-2-[(2-hydroxy-1-phenylethyl)amino]-1-(1-pyrrolidinyl)-1-propanone C23H28N2O5 详情 详情
(X) 61801 (1R,2R)-1-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-[(2-hydroxy-1-phenylethyl)amino]-3-(1-pyrrolidinyl)-1-propanol C23H30N2O4 详情 详情
(XI) 61802 (1R,2R)-2-amino-1-(2,3-dihydro-1,4-benzodioxin-6-yl)-3-(1-pyrrolidinyl)-1-propanol C15H22N2O3 详情 详情
(XII) 69189 octanoic acid N-hydroxysuccinimide ester;2,5-Dioxopyrrolidin-1-yl octanoate;Caprylic acid N-hydroxysuccinimide ester;N-(Octanoyloxy)succinimide;N-Hydroxysuccinimidyl caprylate 14464-30-3 C12H19NO4 详情 详情
(XIII) 11123 Octanoyl chloride; n-Caprylyl chloride;Capryloyl chloride 111-64-8 C8H15ClO 详情 详情
(XIV) 10264 1-Hydroxydihydro-1H-pyrrole-2,5-dione; N-Hydroxysuccinimide; 1-Hydroxy-2,5-pyrrolidinedione 6066-82-6 C4H5NO3 详情 详情
Extended Information