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【结 构 式】

【分子编号】53094

【品名】(2S,3R,4S,6R)-2-{[(3aS,4R,7R,8S,9S,10R,11R,13R,15R)-4-ethyl-8-hydroxy-11-methoxy-14-(methoxyimino)-3a,7,9,11,13,15-hexamethyl-2,6-dioxo-1-({3-[4-(3-pyridinyl)-1H-imidazol-1-yl]butyl}amino)tetradecahydro-2H-oxacyclotetradecino[4,3-d][1,3]oxazol-10-yl]oxy}-4-(dimethylamino)-6-methyltetrahydro-2H-pyran-3-yl acetate

【CA登记号】n/a

【 分 子 式 】C46H73N7O11

【 分 子 量 】900.1262

【元素组成】C 61.38% H 8.17% N 10.89% O 19.55%

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:(XVII)

A related synthetic procedure started from 2',4''-bis-O-acetyl-6-O-methylerythromycin A (XII). Treatment of diol (XII) with carbonyldiimidazole in the presence of DBU generated the anhydro imidazolide (XIII). Reaction of (XIII) with hydrazine gave rise to the N-amino cyclic carbamate (XIV). Selective cleavage of the cladinose moiety at position 3 under acidic conditions afforded (XV). The keto group of (XV) was then converted to the oxime (XVI) upon treatment with O-methyl hydroxylamine. Reductive alkylation of (XVI) with aldehyde (IX) in the presence of NaBH(OAc)3 provided adduct (XVII). Then, Swern oxidation of the 3-hydroxy group of (XVII) to the corresponding ketone, followed by hydrolysis of the acetate ester, furnished the title ketolide as a diastereomeric mixture.

1 Kaneko, T.; McMillen, W.T.; McLaughlin, R.W.; Ripin, D.H.B.; Vanerplas, B.C. (Pfizer Inc.); Synthesis of carbamate ketolide antibiotics. EP 1088828; JP 2001151792 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(IX) 53087 3-[4-(3-pyridinyl)-1H-imidazol-1-yl]butanal n/a C12H13N3O 详情 详情
(XII) 53089 (2S,3S,4R,6R)-6-[((3R,4S,5R,6R,7R,9R,11R,12R,13S,14R)-6-{[(2S,3R,4S,6R)-3-(acetyloxy)-4-(dimethylamino)-6-methyltetrahydro-2H-pyran-2-yl]oxy}-14-ethyl-12,13-dihydroxy-7-methoxy-3,5,7,9,11,13-hexamethyl-2,10-dioxooxacyclotetradecanyl)oxy]-4-methoxy-2,4-dimethyltetrahydro-2H-pyran-3-yl acetate n/a C42H73NO15 详情 详情
(XIII) 53090 (2R,3S,7R,9R,10R,11R,12S,13R)-10-{[(2S,3R,4S,6R)-3-(acetyloxy)-4-(dimethylamino)-6-methyltetrahydro-2H-pyran-2-yl]oxy}-12-{[(2R,4R,5S,6S)-5-(acetyloxy)-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy}-2-ethyl-9-methoxy-3,5,7,9,11,13-hexamethyl-6,14-dioxooxa-4-cyclotetradecen-3-yl 1H-imidazole-1-carboxylate n/a C46H73N3O15 详情 详情
(XIV) 53091 (2S,3S,4R,6R)-6-[((3aS,4R,7R,8S,9R,10R,11R,13R,15R)-10-{[(2S,3R,4S,6R)-3-(acetyloxy)-4-(dimethylamino)-6-methyltetrahydro-2H-pyran-2-yl]oxy}-1-amino-4-ethyl-11-methoxy-3a,7,9,11,13,15-hexamethyl-2,6,14-trioxotetradecahydro-2H-oxacyclotetradecino[4,3-d][1,3]oxazol-8-yl)oxy]-4-methoxy-2,4-dimethyltetrahydro-2H-pyran-3-yl acetate n/a C43H73N3O15 详情 详情
(XV) 53092 (2S,3R,4S,6R)-2-{[(3aS,4R,7R,8S,9S,10R,11R,13R,15R)-1-amino-4-ethyl-8-hydroxy-11-methoxy-3a,7,9,11,13,15-hexamethyl-2,6,14-trioxotetradecahydro-2H-oxacyclotetradecino[4,3-d][1,3]oxazol-10-yl]oxy}-4-(dimethylamino)-6-methyltetrahydro-2H-pyran-3-yl acetate n/a C33H57N3O11 详情 详情
(XVI) 53093 (2S,3R,4S,6R)-2-{[(3aS,4R,7R,8S,9S,10R,11R,13R,15R)-1-amino-4-ethyl-8-hydroxy-11-methoxy-14-(methoxyimino)-3a,7,9,11,13,15-hexamethyl-2,6-dioxotetradecahydro-2H-oxacyclotetradecino[4,3-d][1,3]oxazol-10-yl]oxy}-4-(dimethylamino)-6-methyltetrahydro-2H-pyran-3-yl acetate n/a C34H60N4O11 详情 详情
(XVII) 53094 (2S,3R,4S,6R)-2-{[(3aS,4R,7R,8S,9S,10R,11R,13R,15R)-4-ethyl-8-hydroxy-11-methoxy-14-(methoxyimino)-3a,7,9,11,13,15-hexamethyl-2,6-dioxo-1-({3-[4-(3-pyridinyl)-1H-imidazol-1-yl]butyl}amino)tetradecahydro-2H-oxacyclotetradecino[4,3-d][1,3]oxazol-10-yl]oxy}-4-(dimethylamino)-6-methyltetrahydro-2H-pyran-3-yl acetate n/a C46H73N7O11 详情 详情
Extended Information