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【结 构 式】 
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【分子编号】53358 【品名】N-[(10S,11R,12R,15S,18S)-15-(2-amino-2-oxoethyl)-10,11,23-trihydroxy-9,14,17-trioxo-12-{[(triisopropylsilyl)oxy]methyl}-8,13,16-triazatetracyclo[18.3.1.0~2,7~.0~6,10~]tetracosa-1(24),2,4,6,20,22-hexaen-18-yl]-3-methyl-2-oxopentanamide 【CA登记号】n/a |
【 分 子 式 】C39H55N5O10Si 【 分 子 量 】781.9789 【元素组成】C 59.9% H 7.09% N 8.96% O 20.46% Si 3.59% |
合成路线1
该中间体在本合成路线中的序号：(XXIII)The selective protection of the primary OH group of (XVII) with Tips-Cl and imidazole yields the silyl ether (XVIII), which is treated with TFA in dichloromethane to afford the carboxylic acid (XIX). The macrolactamization of (XIX) by means of EDC, HOAt and DIEA in DMF/dichloromethane provides the macrolactam (XX), which is debenzylated by hydrogenation with H2 over Pd/C in ethanol to furnish the aminophenol (XXI). The condensation of (XXI) with racemic 3-methyl-2-oxopentanoic acid (XXII) by means of EDC and HOAt in DMF/dichloromethane gives the amide (XXIII) as a diastereomeric mixture. The desilylation of (XXIII) by means of HF and pyridine gives the tetrahydroxy compound (XXIV), which is fully resilylated with Tes-OTf and lutidine in dichloromethane to yield the tetra-silyl ether (XXV).
| 【1】 Lin, S.N.; Danishefsky, S.J.; The total synthesis of proteasome inhibitors TMC-95A and TMC-95B: Discovery of a new method to generate cis-propenyl amides. Angew Chem. Int Ed 2002, 41, 3, 512. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XVII) | 53353 | tert-butyl (2S)-4-amino-2-[((2S)-3-[4-(benzyloxy)-3-((3S)-3-{(1R,2R)-2-[(tert-butoxycarbonyl)amino]-1,3-dihydroxypropyl}-3-hydroxy-2-oxo-2,3-dihydro-1H-indol-7-yl)phenyl]-2-{[(benzyloxy)carbonyl]amino}propanoyl)amino]-4-oxobutanoate | n/a | C48H57N5O13 | 详情 | 详情 |
| (XVIII) | 53354 | tert-butyl (2S)-4-amino-2-[((2S)-3-[4-(benzyloxy)-3-((3S)-3-{(1R,2R)-2-[(tert-butoxycarbonyl)amino]-1-hydroxy-3-[(triisopropylsilyl)oxy]propyl}-3-hydroxy-2-oxo-2,3-dihydro-1H-indol-7-yl)phenyl]-2-{[(benzyloxy)carbonyl]amino}propanoyl)amino]-4-oxobutanoate | n/a | C57H77N5O13Si | 详情 | 详情 |
| (XIX) | 53355 | (2S)-4-amino-2-[((2S)-3-[4-(benzyloxy)-3-((3S)-3-{(1R,2R)-2-[(tert-butoxycarbonyl)amino]-1-hydroxy-3-[(triisopropylsilyl)oxy]propyl}-3-hydroxy-2-oxo-2,3-dihydro-1H-indol-7-yl)phenyl]-2-{[(benzyloxy)carbonyl]amino}propanoyl)amino]-4-oxobutanoic acid | n/a | C53H69N5O13Si | 详情 | 详情 |
| (XX) | 53356 | benzyl (10S,11R,12R,15S,18S)-15-(2-amino-2-oxoethyl)-23-(benzyloxy)-10,11-dihydroxy-9,14,17-trioxo-12-{[(triisopropylsilyl)oxy]methyl}-8,13,16-triazatetracyclo[18.3.1.0~2,7~.0~6,10~]tetracosa-1(24),2,4,6,20,22-hexaen-18-ylcarbamate | n/a | C48H59N5O10Si | 详情 | 详情 |
| (XXI) | 53357 | 2-[(10S,11R,12R,15S,18S)-18-amino-10,11,23-trihydroxy-9,14,17-trioxo-12-{[(triisopropylsilyl)oxy]methyl}-8,13,16-triazatetracyclo[18.3.1.0~2,7~.0~6,10~]tetracosa-1(24),2,4,6,20,22-hexaen-15-yl]acetamide | n/a | C33H47N5O8Si | 详情 | 详情 |
| (XXII) | 46950 | 3-methyl-2-oxopentanoic acid | C6H10O3 | 详情 | 详情 | |
| (XXIII) | 53358 | N-[(10S,11R,12R,15S,18S)-15-(2-amino-2-oxoethyl)-10,11,23-trihydroxy-9,14,17-trioxo-12-{[(triisopropylsilyl)oxy]methyl}-8,13,16-triazatetracyclo[18.3.1.0~2,7~.0~6,10~]tetracosa-1(24),2,4,6,20,22-hexaen-18-yl]-3-methyl-2-oxopentanamide | n/a | C39H55N5O10Si | 详情 | 详情 |
| (XXIV) | 53359 | N-[(10S,11R,12R,15S,18S)-15-(2-amino-2-oxoethyl)-10,11,23-trihydroxy-12-(hydroxymethyl)-9,14,17-trioxo-8,13,16-triazatetracyclo[18.3.1.0~2,7~.0~6,10~]tetracosa-1(24),2,4,6,20,22-hexaen-18-yl]-3-methyl-2-oxopentanamide | n/a | C30H35N5O10 | 详情 | 详情 |
| (XXV) | 53360 | N-[(10S,11R,12R,15S,18S)-15-(2-amino-2-oxoethyl)-9,14,17-trioxo-10,11,23-tris[(triethylsilyl)oxy]-12-{[(triethylsilyl)oxy]methyl}-8,13,16-triazatetracyclo[18.3.1.0~2,7~.0~6,10~]tetracosa-1(24),2,4,6,20,22-hexaen-18-yl]-3-methyl-2-oxopentanamide | n/a | C54H91N5O10Si4 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号：(XXIII)The selective protection of the primary OH group of (XVII) with Tips-Cl and imidazole yields the silyl ether (XVIII), which is treated with TFA in dichloromethane to afford the carboxylic acid (XIX). The macrolactamization of (XIX) by means of EDC, HOAt and DIEA in DMF/dichloromethane provides the macrolactam (XX), which is debenzylated by hydrogenation with H2 over Pd/C in ethanol to furnish the aminophenol (XXI). The condensation of (XXI) with racemic 3-methyl-2-oxopentanoic acid (XXII) by means of EDC and HOAt in DMF/dichloromethane gives the amide (XXIII) as a diastereomeric mixture. The desilylation of (XXIII) by means of HF and pyridine gives the tetrahydroxy compound (XXIV), which is fully resilylated with Tes-OTf and lutidine in dichloromethane to yield the tetra-silyl ether (XXV).
| 【1】 Lin, S.N.; Danishefsky, S.J.; The total synthesis of proteasome inhibitors TMC-95A and TMC-95B: Discovery of a new method to generate cis-propenyl amides. Angew Chem. Int Ed 2002, 41, 3, 512. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XVII) | 53353 | tert-butyl (2S)-4-amino-2-[((2S)-3-[4-(benzyloxy)-3-((3S)-3-{(1R,2R)-2-[(tert-butoxycarbonyl)amino]-1,3-dihydroxypropyl}-3-hydroxy-2-oxo-2,3-dihydro-1H-indol-7-yl)phenyl]-2-{[(benzyloxy)carbonyl]amino}propanoyl)amino]-4-oxobutanoate | n/a | C48H57N5O13 | 详情 | 详情 |
| (XVIII) | 53354 | tert-butyl (2S)-4-amino-2-[((2S)-3-[4-(benzyloxy)-3-((3S)-3-{(1R,2R)-2-[(tert-butoxycarbonyl)amino]-1-hydroxy-3-[(triisopropylsilyl)oxy]propyl}-3-hydroxy-2-oxo-2,3-dihydro-1H-indol-7-yl)phenyl]-2-{[(benzyloxy)carbonyl]amino}propanoyl)amino]-4-oxobutanoate | n/a | C57H77N5O13Si | 详情 | 详情 |
| (XIX) | 53355 | (2S)-4-amino-2-[((2S)-3-[4-(benzyloxy)-3-((3S)-3-{(1R,2R)-2-[(tert-butoxycarbonyl)amino]-1-hydroxy-3-[(triisopropylsilyl)oxy]propyl}-3-hydroxy-2-oxo-2,3-dihydro-1H-indol-7-yl)phenyl]-2-{[(benzyloxy)carbonyl]amino}propanoyl)amino]-4-oxobutanoic acid | n/a | C53H69N5O13Si | 详情 | 详情 |
| (XX) | 53356 | benzyl (10S,11R,12R,15S,18S)-15-(2-amino-2-oxoethyl)-23-(benzyloxy)-10,11-dihydroxy-9,14,17-trioxo-12-{[(triisopropylsilyl)oxy]methyl}-8,13,16-triazatetracyclo[18.3.1.0~2,7~.0~6,10~]tetracosa-1(24),2,4,6,20,22-hexaen-18-ylcarbamate | n/a | C48H59N5O10Si | 详情 | 详情 |
| (XXI) | 53357 | 2-[(10S,11R,12R,15S,18S)-18-amino-10,11,23-trihydroxy-9,14,17-trioxo-12-{[(triisopropylsilyl)oxy]methyl}-8,13,16-triazatetracyclo[18.3.1.0~2,7~.0~6,10~]tetracosa-1(24),2,4,6,20,22-hexaen-15-yl]acetamide | n/a | C33H47N5O8Si | 详情 | 详情 |
| (XXII) | 46950 | 3-methyl-2-oxopentanoic acid | C6H10O3 | 详情 | 详情 | |
| (XXIII) | 53358 | N-[(10S,11R,12R,15S,18S)-15-(2-amino-2-oxoethyl)-10,11,23-trihydroxy-9,14,17-trioxo-12-{[(triisopropylsilyl)oxy]methyl}-8,13,16-triazatetracyclo[18.3.1.0~2,7~.0~6,10~]tetracosa-1(24),2,4,6,20,22-hexaen-18-yl]-3-methyl-2-oxopentanamide | n/a | C39H55N5O10Si | 详情 | 详情 |
| (XXIV) | 53359 | N-[(10S,11R,12R,15S,18S)-15-(2-amino-2-oxoethyl)-10,11,23-trihydroxy-12-(hydroxymethyl)-9,14,17-trioxo-8,13,16-triazatetracyclo[18.3.1.0~2,7~.0~6,10~]tetracosa-1(24),2,4,6,20,22-hexaen-18-yl]-3-methyl-2-oxopentanamide | n/a | C30H35N5O10 | 详情 | 详情 |
| (XXV) | 53360 | N-[(10S,11R,12R,15S,18S)-15-(2-amino-2-oxoethyl)-9,14,17-trioxo-10,11,23-tris[(triethylsilyl)oxy]-12-{[(triethylsilyl)oxy]methyl}-8,13,16-triazatetracyclo[18.3.1.0~2,7~.0~6,10~]tetracosa-1(24),2,4,6,20,22-hexaen-18-yl]-3-methyl-2-oxopentanamide | n/a | C54H91N5O10Si4 | 详情 | 详情 |