tert-butyl-S-(4,6-dimethylpyrimid-2-yl)thiocarbonate; O-(tert-butyl) S-(4,6-dimethyl-2-pyrimidinyl) carbonothioate -Drug Synthesis Database

【结构式】

【分子编号】30669

【品名】tert-butyl-S-(4,6-dimethylpyrimid-2-yl)thiocarbonate; O-(tert-butyl) S-(4,6-dimethyl-2-pyrimidinyl) carbonothioate

【CA登记号】41840-28-2

【分子式】C₁₁H₁₆N₂O₂S

【分子量】240.32632

【元素组成】C 54.98% H 6.71% N 11.66% O 13.31% S 13.34%

与该中间体有关的原料药合成路线共 2 条

合成路线1 合成路线2

合成路线1

该中间体在本合成路线中的序号：(VIII)

The acylation of 3',4'-dideoxykanamycin B (dibekacin) (I) with tert-butyl-S-(4,6-dimethylpyrimid-2-yl)thiocarbonate (VIII) by means of triethylamine in isopropanol gives 3,2',6'-tri-N-tert-butyloxycarbonyldibekacin (IX), which is acylated again with 4-benzyloxycarbonylamino-2-hydroxybutyric acid N-hydroxysuccinimide ester (X) in THE yielding the protected habekacin (XI). Finally, this compound is deprotected by a treatment with trifluoroacetic acid, followed by hydrogenolysis with H2 over Pd/C in methanol - acetic acid.

参考文献中间体

合成目标

【1】 Umezawa, H.; Kondo, S. (Microbial Chemistry Research Foundation); Process for the preparation of 1-N-isoseryl- or 1-N-(L-4-amino-2-hydroxybutyryl)-3',4'-dideoxykanamycin B and intermediates thereof. DE 2950020; FR 2444046; GB 2038329; GB 2072676; GB 2072677; JP 55081897; US 4268664 .
【2】 Serradell, M.N.; Castaner, J.; Blancafort, P.; Habekacin. Drugs Fut 1983, 8, 5, 410.

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)	30662	Dibekacin; 3',4'-Dideoxykanamycin B; (2R,3R,4S,5S,6R)-4-amino-2-[((1S,2S,3R,4S,6R)-4,6-diamino-3-[[(2R,3R,6S)-3-amino-6-(aminomethyl)tetrahydro-2H-pyran-2-yl]oxy]-2-hydroxycyclohexyl)oxy]-6-(hydroxymethyl)tetrahydro-2H-pyran-3,5-diol		C₁₈H₃₇N₅O₈	详情	详情
(VIII)	30669	tert-butyl-S-(4,6-dimethylpyrimid-2-yl)thiocarbonate; O-(tert-butyl) S-(4,6-dimethyl-2-pyrimidinyl) carbonothioate	41840-28-2	C₁₁H₁₆N₂O₂S	详情	详情
(IX)	30670	3,2',6'-tri-N-tert-butyloxycarbonyldibekacin; tert-Butyl (2R,3R,4S,5S,6R)-2-([(1S,2S,3R,4S,6R)-6-amino-4-[(tert-butoxycarbonyl)amino]-3-[((2R,3R,6S)-3-[(tert-butoxycarbonyl)amino]-6-[[(tert-butoxycarbonyl)amino]methyl]tetrahydro-2H-pyran-2-yl)oxy]-2-hydroxycyclohexyl]oxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-4-ylcarbamate		C₃₈H₆₉N₅O₁₆	详情	详情
(X)	30671	4-Benzyloxycarbonylamino-2-hydroxybutyric acid N-hydroxysuccinimide ester; Benzyl (3S)-4-[(2,5-dioxo-1-pyrrolidinyl)oxy]-3-hydroxy-4-oxobutylcarbamate		C₁₆H₁₈N₂O₇	详情	详情
(XI)	30672	benzyl (3S)-4-[((1R,2S,3S,4R,5S)-5-[(tert-butoxycarbonyl)amino]-4-[((2R,3R,6S)-3-[(tert-butoxycarbonyl)amino]-6-[[(tert-butoxycarbonyl)amino]methyl]tetrahydro-2H-pyran-2-yl)oxy]-2-[[(2R,3R,4S,5S,6R)-4-[(tert-butoxycarbonyl)amino]-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy]-3-hydroxycyclohexyl)amino]-3-hydroxy-4-oxobutylcarbamate		C₅₀H₈₂N₆O₂₀	详情	详情

合成路线2

该中间体在本合成路线中的序号：(VIII)

The acylation of 3',4'-dideoxy-3',4'-didehydrokanamycin B (XII) with tert-butyl-S-(4,6-dimethylpyrimid-2-yl)thiocarbonate (VIII) as before gives 3,2',6'-tri-N-butoxycarbonyl-3',4'-dideoxy-3',4'-didehydrokanamycin B (XIII), which is acylated again with (X) as before yielding the fully protected 3',4'-didehydrohabekacin (XIV). Partial deprotection of (XIV) with trifluoroacetic acid affords 1-N-(4-benzyloxycarbonylamino-2-hydroxybutyryl)-3',4'-dideoxy-3',4'-didehydrokanamycin B (XV), which is finally debenzylated and reduced by a treatment with H2 over PtO2 in aqueous acetic acid.

参考文献中间体

合成目标

【1】 Serradell, M.N.; Castaner, J.; Blancafort, P.; Habekacin. Drugs Fut 1983, 8, 5, 410.

中间体序号	中间体编号	品名	CAS号	分子式	供应商	用于合成
(VIII)	30669	tert-butyl-S-(4,6-dimethylpyrimid-2-yl)thiocarbonate; O-(tert-butyl) S-(4,6-dimethyl-2-pyrimidinyl) carbonothioate	41840-28-2	C₁₁H₁₆N₂O₂S	详情	详情
(X)	30671	4-Benzyloxycarbonylamino-2-hydroxybutyric acid N-hydroxysuccinimide ester; Benzyl (3S)-4-[(2,5-dioxo-1-pyrrolidinyl)oxy]-3-hydroxy-4-oxobutylcarbamate		C₁₆H₁₈N₂O₇	详情	详情
(XII)	30673	3',4'-dideoxy-3',4'-didehydrokanamycin B; (2R,3R,4S,5S,6R)-4-amino-2-[((1S,2S,3R,4S,6R)-4,6-diamino-3-[[(2R,3R,6S)-3-amino-6-(aminomethyl)-3,6-dihydro-2H-pyran-2-yl]oxy]-2-hydroxycyclohexyl)oxy]-6-(hydroxymethyl)tetrahydro-2H-pyran-3,5-diol		C₁₈H₃₅N₅O₈	详情	详情
(XIII)	30674	3,2',6'-tri-N-butoxycarbonyl-3',4'-dideoxy-3',4'-didehydrokanamycin B; tert-Butyl (2R,3R,4S,5S,6R)-2-([(1S,2S,3R,4S,6R)-6-amino-4-[(tert-butoxycarbonyl)amino]-3-[((2R,3R,6S)-3-[(tert-butoxycarbonyl)amino]-6-[[(tert-butoxycarbonyl)amino]methyl]-3,6-dihydro-2H-pyran-2-yl)oxy]-2-hydroxycyclohexyl]oxy)-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-4-ylcarbamate		C₃₈H₆₇N₅O₁₆	详情	详情
(XIV)	30675	tert-butyl (1S,2R,3S,4S,5R)-2-[[(2R,3R,6S)-3-amino-6-(aminomethyl)-3,6-dihydro-2H-pyran-2-yl]oxy]-5-[((2S)-4-[[(benzyloxy)carbonyl]amino]-2-hydroxybutanoyl)amino]-4-[[(2R,3R,4S,5S,6R)-4-[(tert-butoxycarbonyl)amino]-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy]-3-hydroxycyclohexylcarbamate		C₄₀H₆₄N₆O₁₆	详情	详情
(XV)	30676	1-N-(4-benzyloxycarbonylamino-2-Hydroxybutyryl)-3',4'-dideoxy-3',4'-didehydrokanamycin B; Benzyl (3S)-4-[((1R,2S,3S,4R,5S)-5-amino-4-[[(2R,3R,6S)-3-amino-6-(aminomethyl)-3,6-dihydro-2H-pyran-2-yl]oxy]-2-[[(2R,3R,4S,5S,6R)-4-amino-3,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy]-3-hydroxycyclohexyl)amino]-3-hydroxy-4-oxobutylcarbamate		C₃₀H₄₈N₆O₁₂	详情	详情

Extended Information