A-177928, -Drug Synthesis Database

【结构式】

【药物名称】A-177928

【化学名称】6-O-(Cyanomethyl)erythromycin A

【CA登记号】198482-67-6

【分子式】C₃₉H₆₈N₂O₁₃

【分子量】772.98241

【开发单位】Abbott (Originator)

【药理作用】Antibiotics, ANTIINFECTIVE THERAPY, Macrolides

合成路线1 合成路线2

合成路线1

Alkylation of protected erythromycin (I) at the 6-hydroxyl group with allyl bromide provided ether (II). Hydrolysis of the cyclohexylidene ketal group of (II) with concomitant desilylation with AcOH gave (III). The oxime function of (III) was then hydrolyzed using either sodium bisulfite and formic acid or sodium nitrite and HCl to afford ketone (IV). Dihydroxylation of the allyl group of (IV) by means of N-methylmorpholine-N-oxide and a catalytic amount of OsO4, followed by oxidative cleavage of the resulting glycol (V) with NaIO4 produced aldehyde (VI). Alternatively, aldehyde (VI) was obtained by ozonolysis of the allyl ether (IV).

参考文献中间体

【1】 Bui, M.H.; Plattner, J.J.; Ramney, p.M.; Nilius, A.M.; Chu, D.T.W.; Or, Y.S.; Wang, S.; Clark, R.F.; Henry, R.F.; Ma, Z.; Novel 6-O-substituted erythromycin A derivatives. Synthesis and antibacterial activity. 38th Intersci Conf Antimicrob Agents Chemother (Sept 24 1998, San Diego) 1998, Abst F-125.
【2】 Or, Y.S.; Chu, D.T.; Clark, R.F.; Ma, Z. (Abbott Laboratories Inc.); 6-O-Substd. erythromycins and method for making them. EP 0918783; EP 1007530; JP 2000509712; US 6075011; WO 9742204; WO 9742206 .

中间体序号	中间体编号	品名	分子式	供应商	用于合成
(I)	28388	(3R,4S,5R,6R,7S,9R,11S,12R,13S,14R)-6-([(2S,3R,4S,6R)-4-(dimethylamino)-6-methyl-3-[(trimethylsilyl)methyl]tetrahydro-2H-pyran-2-yl]oxy)-14-ethyl-7,12,13-trihydroxy-4-([(2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-[(trimethylsilyl)methyl]tetrahydro-2H-pyran-2-yl]oxy)-3,5,7,9,11,13-hexamethyl-2,10-oxacyclotetradecanedione 10-[O-(1-isopropoxycyclohexyl)oxime]	C₅₄H₁₀₄N₂O₁₂Si₂	详情	详情
(II)	28389	(3R,4S,5R,6R,7S,9R,11S,12R,13S,14R)-7-(allyloxy)-6-([(2S,3R,4S,6R)-4-(dimethylamino)-6-methyl-3-[(trimethylsilyl)methyl]tetrahydro-2H-pyran-2-yl]oxy)-14-ethyl-12,13-dihydroxy-4-([(2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-[(trimethylsilyl)methyl]tetrahydro-2H-pyran-2-yl]oxy)-3,5,7,9,11,13-hexamethyl-2,10-oxacyclotetradecanedione 10-[O-(1-isopropoxycyclohexyl)oxime]	C₅₇H₁₀₈N₂O₁₂Si₂	详情	详情
(III)	28390	(3R,4S,5R,6R,7S,9R,11S,12R,13S,14R)-7-(allyloxy)-6-[[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy]-14-ethyl-12,13-dihydroxy-4-[[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy]-3,5,7,9,11,13-hexamethyl-2,10-oxacyclotetradecanedione 10-oxime	C₄₀H₇₂N₂O₁₃	详情	详情
(IV)	28391	(3R,4S,5R,6R,7S,9R,11R,12R,13S,14R)-7-(allyloxy)-6-[[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy]-14-ethyl-12,13-dihydroxy-4-[[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy]-3,5,7,9,11,13-hexamethyl-2,10-oxacyclotetradecanedione	C₄₀H₇₁NO₁₃	详情	详情
(V)	28392	(3R,4S,5R,6R,7S,9R,11R,12R,13S,14R)-7-(2,3-dihydroxypropoxy)-6-[[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy]-14-ethyl-12,13-dihydroxy-4-[[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy]-3,5,7,9,11,13-hexamethyl-2,10-oxacyclotetradecanedione	C₄₀H₇₃NO₁₅	详情	详情
(VI)	28393	2-[((3R,4S,5R,6R,7S,9R,11R,12R,13S,14R)-6-[[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy]-14-ethyl-12,13-dihydroxy-4-[[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy]-3,5,7,9,11,13-hexamethyl-2,10-dioxooxacyclotetradecanyl)oxy]acetaldehyde	C₃₉H₆₉NO₁₄	详情	详情

合成路线2

Condensation of this aldehyde (VI) with hydroxylamine produced the corresponding oxime (VII), which was finally dehydrated to the target nitrile by means of diisopropyl carbodiimide and CuCl.

参考文献中间体

【1】 Bui, M.H.; Plattner, J.J.; Ramney, p.M.; Nilius, A.M.; Chu, D.T.W.; Or, Y.S.; Wang, S.; Clark, R.F.; Henry, R.F.; Ma, Z.; Novel 6-O-substituted erythromycin A derivatives. Synthesis and antibacterial activity. 38th Intersci Conf Antimicrob Agents Chemother (Sept 24 1998, San Diego) 1998, Abst F-125.
【2】 Or, Y.S.; Chu, D.T.; Clark, R.F.; Ma, Z. (Abbott Laboratories Inc.); 6-O-Substd. erythromycins and method for making them. EP 0918783; EP 1007530; JP 2000509712; US 6075011; WO 9742204; WO 9742206 .

中间体序号	中间体编号	品名	CAS号	分子式	供应商	用于合成
(VI)	28393	2-[((3R,4S,5R,6R,7S,9R,11R,12R,13S,14R)-6-[[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy]-14-ethyl-12,13-dihydroxy-4-[[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy]-3,5,7,9,11,13-hexamethyl-2,10-dioxooxacyclotetradecanyl)oxy]acetaldehyde		C₃₉H₆₉NO₁₄	详情	详情
(VII)	28399	2-[((3R,4S,5R,6R,7S,9R,11R,12R,13S,14R)-6-[[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy]-14-ethyl-12,13-dihydroxy-4-[[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy]-3,5,7,9,11,13-hexamethyl-2,10-dioxooxacyclotetradecanyl)oxy]acetaldehyde oxime		C₃₉H₇₀N₂O₁₄	详情	详情

Extended Information