Pentachlorophenyl dichloroacetate -Drug Synthesis Database

【结构式】

【分子编号】56324

【品名】Pentachlorophenyl dichloroacetate

【CA登记号】19745-69-8

【分子式】C₈HCl₇O₂

【分子量】377.26364

【元素组成】C 25.47% H 0.27% Cl 65.78% O 8.48%

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)

Acylation of 3,4,6-tri-O-benzyl-D-glucosamine (I) by means of pentachlorophenyl dichloroacetate (II) yielded the dichloroacetamide (III). Acylation of glucosamine (III) with acid chloride (IV) in pyridine/CH2Cl2 provided the 1-O-p-nitrobenzoyl derivative (V), which was treated with hydrogen bromide in CH2Cl2 to furnish glycosyl bromide (VI). Coupling of bromide (VI) with the glucosamine cyclic carbamate (VII) was performed in the presence of mercury(II) cyanide to afford the disaccharide (VIII). Alkaline hydrolysis of the dichloroacetamide and cyclic carbamate functions of (VIII) gave diamine (IX), which was subsequently acetylated to diamide (X) by means of acetic anhydride in pyridine.

参考文献中间体

合成目标

【1】 Kusumoto, S.; et al.; Chemical synthesis and biological activities of two disaccharide dipeptides corresponding to the repeating units of bacterial peptidoglycan. Bull Chem Soc Jpn 1986, 59, 5, 1411.
【2】 Kusumoto, S.; et al.; Synthesis of N-acetyl-beta-D-glucosaminyl-(1-4)-N-acetylmuramyl-L-alanyl-D-isoglutamine. Tetrahedron Lett 1978, 45, 4407.

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)	56323	(3R,4R,5S,6R)-3-amino-4,5-bis(benzyloxy)-6-[(benzyloxy)methyl]tetrahydro-2H-pyran-2-ol		C₂₇H₃₁NO₅	详情	详情
(II)	56324	Pentachlorophenyl dichloroacetate	19745-69-8	C₈HCl₇O₂	详情	详情
(III)	56325	N-{(3R,4R,5S,6R)-4,5-bis(benzyloxy)-6-[(benzyloxy)methyl]-2-hydroxytetrahydro-2H-pyran-3-yl}-2,2-dichloroacetamide		C₂₉H₃₁Cl₂NO₆	详情	详情
(IV)	18941	p-nitrobenzoyl chloride; 4-nitrobenzoyl chloride	122-04-3	C₇H₄ClNO₃	详情	详情
(V)	56326	(3R,4R,5S,6R)-4,5-bis(benzyloxy)-6-[(benzyloxy)methyl]-3-[(2,2-dichloroacetyl)amino]tetrahydro-2H-pyran-2-yl 4-nitrobenzoate		C₃₆H₃₄Cl₂N₂O₉	详情	详情
(VI)	56327	N-{(3R,4R,5S,6R)-4,5-bis(benzyloxy)-6-[(benzyloxy)methyl]-2-bromotetrahydro-2H-pyran-3-yl}-2,2-dichloroacetamide		C₂₉H₃₀BrCl₂NO₅	详情	详情
(VII)	56328	(4R,5R)-4-(diethoxymethyl)-5-[(R)-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl](hydroxy)methyl]-1,3-oxazolidin-2-one		C₄₃H₅₄Cl₂N₂O₁₂	详情	详情
(VIII)	56329	N-[(2S,3R,4R,5S,6R)-4,5-bis(benzyloxy)-6-[(benzyloxy)methyl]-2-({(R)-[(4R,5R)-4-(diethoxymethyl)-2-oxo-1,3-oxazolidin-5-yl][(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]methyl}oxy)tetrahydro-2H-pyran-3-yl]-2,2-dichloroacetamide		C₄₃H₅₄Cl₂N₂O₁₂	详情	详情
(IX)	56330	(1S,2R,3R)-3-amino-1-({(2S,3R,4R,5S,6R)-3-amino-4,5-bis(benzyloxy)-6-[(benzyloxy)methyl]tetrahydro-2H-pyran-2-yl}oxy)-1-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-4,4-diethoxy-2-butanol		C₄₀H₅₆N₂O₁₀	详情	详情
(X)	56331	N-{(1R,2R,3S)-3-({(2S,3R,4R,5S,6R)-3-(acetylamino)-4,5-bis(benzyloxy)-6-[(benzyloxy)methyl]tetrahydro-2H-pyran-2-yl}oxy)-1-(diethoxymethyl)-3-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2-hydroxypropyl}acetamide		C₄₄H₆₀N₂O₁₂	详情	详情

Extended Information