Technology Process of (4E,6Z,10E)-(8S,9R,12S,13R,14S,16S,17R)-13,14,17,20,22-Pentamethoxy-9-(4-methoxy-benzyloxy)-4,8,10,12,16-pentamethyl-2-aza-bicyclo[16.3.1]docosa-1(22),4,6,10,18,20-hexaen-3-one
There total 25 articles about (4E,6Z,10E)-(8S,9R,12S,13R,14S,16S,17R)-13,14,17,20,22-Pentamethoxy-9-(4-methoxy-benzyloxy)-4,8,10,12,16-pentamethyl-2-aza-bicyclo[16.3.1]docosa-1(22),4,6,10,18,20-hexaen-3-one which
guide to synthetic route it.
The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:
synthetic route:
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170707-66-1
(2E,4Z,8E)-(6S,7R,10S,11R,12S,14S,15R)-15-(3-Amino-2,5-dimethoxy-phenyl)-11,12,15-trimethoxy-7-(4-methoxy-benzyloxy)-2,6,8,10,14-pentamethyl-pentadeca-2,4,8-trienoic acid ethyl ester
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206661-19-0
(4E,6Z,10E)-(8S,9R,12S,13R,14S,16S,17R)-13,14,17,20,22-Pentamethoxy-9-(4-methoxy-benzyloxy)-4,8,10,12,16-pentamethyl-2-aza-bicyclo[16.3.1]docosa-1(22),4,6,10,18,20-hexaen-3-one
- Guidance literature:
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Multi-step reaction with 2 steps
1: aq. LiOH / methanol; tetrahydrofuran / 48 h / Ambient temperature
2: iPr2NEt, N,N'-bis(2-oxo-3-oxazolidinyl)phosphinic chloride / toluene / 12 h / 85 °C
With
lithium hydroxide; bis-(2-oxo-3-oxazolidinyl)phosphoryl chloride; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; methanol; toluene;
DOI:10.1021/ja974318b
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170707-62-7
(2Z,6E)-(4S,5R,8S,9R,10S,12S,13R)-13-(2,5-Dimethoxy-3-nitro-phenyl)-9,10,13-trimethoxy-5-(4-methoxy-benzyloxy)-4,6,8,12-tetramethyl-trideca-2,6-dienoic acid methyl ester
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206661-19-0
(4E,6Z,10E)-(8S,9R,12S,13R,14S,16S,17R)-13,14,17,20,22-Pentamethoxy-9-(4-methoxy-benzyloxy)-4,8,10,12,16-pentamethyl-2-aza-bicyclo[16.3.1]docosa-1(22),4,6,10,18,20-hexaen-3-one
- Guidance literature:
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Multi-step reaction with 6 steps
1: 87 percent / DIBAL / tetrahydrofuran / -78 °C
2: 1.) (COCl)2, DMSO, 2.) Et3N
3: 97 percent / toluene / 12 h / Heating
4: 99 percent / NaBH2S3 / tetrahydrofuran / 5 h / Heating
5: aq. LiOH / methanol; tetrahydrofuran / 48 h / Ambient temperature
6: iPr2NEt, N,N'-bis(2-oxo-3-oxazolidinyl)phosphinic chloride / toluene / 12 h / 85 °C
With
lithium hydroxide; oxalyl dichloride; NaBH2S3; bis-(2-oxo-3-oxazolidinyl)phosphoryl chloride; diisobutylaluminium hydride; dimethyl sulfoxide; triethylamine; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; methanol; toluene;
DOI:10.1021/ja974318b
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170707-61-6
(E)-(2R,3R,6S,7R,8S,10S,11R)-11-(2,5-Dimethoxy-3-nitro-phenyl)-7,8,11-trimethoxy-3-(4-methoxy-benzyloxy)-2,4,6,10-tetramethyl-undec-4-enal
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206661-19-0
(4E,6Z,10E)-(8S,9R,12S,13R,14S,16S,17R)-13,14,17,20,22-Pentamethoxy-9-(4-methoxy-benzyloxy)-4,8,10,12,16-pentamethyl-2-aza-bicyclo[16.3.1]docosa-1(22),4,6,10,18,20-hexaen-3-one
- Guidance literature:
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Multi-step reaction with 7 steps
1: 1.) KN(TMS)2, 18-crown-6 ether / 1.) THF, toluene, -78 deg C, 5 min, 2.) THF, toluene, -78 deg C, 3 h
2: 87 percent / DIBAL / tetrahydrofuran / -78 °C
3: 1.) (COCl)2, DMSO, 2.) Et3N
4: 97 percent / toluene / 12 h / Heating
5: 99 percent / NaBH2S3 / tetrahydrofuran / 5 h / Heating
6: aq. LiOH / methanol; tetrahydrofuran / 48 h / Ambient temperature
7: iPr2NEt, N,N'-bis(2-oxo-3-oxazolidinyl)phosphinic chloride / toluene / 12 h / 85 °C
With
lithium hydroxide; oxalyl dichloride; 18-crown-6 ether; NaBH2S3; bis-(2-oxo-3-oxazolidinyl)phosphoryl chloride; potassium hexamethylsilazane; diisobutylaluminium hydride; dimethyl sulfoxide; triethylamine; N-ethyl-N,N-diisopropylamine;
In
tetrahydrofuran; methanol; toluene;
DOI:10.1021/ja974318b