Technology Process of (-)-(6S,12S)-12-phenoxythionocarbonyloxy-7-aza-1,4-dioxadispiro[4,0,5,4]pentadecan-8-one
There total 15 articles about (-)-(6S,12S)-12-phenoxythionocarbonyloxy-7-aza-1,4-dioxadispiro[4,0,5,4]pentadecan-8-one which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 14 steps
1: 81 percent / DMAP / CH2Cl2 / 2 h
2: hydrogen / Raney nickel / tetrahydrofuran / 14 h / 60 °C / 760 Torr
3: 3.24 g / pyridine / 1 h / Heating
4: aqueous acetic acid / 1 h / 20 °C / ultrasound
5: 144 mg / triethylamine / CH2Cl2 / 14 h / 20 °C
6: 96 percent / hydrogen / palladium on activated charcoal / methanol / 18 h / 20 °C / 760 Torr
7: aq. HCl / 48 h / Heating
8: 95 percent / 4-(dimethylamino)pyridine; dicyclohexylcarbodiimide / pyridine / 24 h / 20 °C
9: 77 percent / 4-(dimethylamino)pyridine / CH2Cl2 / 0.33 h
10: aq. phosphate buffer; pig liver esterase (EC 3.1.1.1); KOH / 336 h / 20 °C / pH 7.5
11: 73 percent / DMSO; dicyclohexylcarbodiimide; orthophosphoric acid
12: TsOH / toluene / 3 h / Heating
13: 31.0 mg / NaOMe / methanol / 0.5 h / 20 °C
14: 87 percent / 4-(dimethylamino)pyridine / CH2Cl2 / 24 h
With
pyridine; hydrogenchloride; dmap; potassium hydroxide; phosphate buffer; phosphoric acid; pig liver esterase (EC 3.1.1.1); hydrogen; sodium methylate; toluene-4-sulfonic acid; acetic acid; dimethyl sulfoxide; triethylamine; dicyclohexyl-carbodiimide;
palladium on activated charcoal; nickel;
In
tetrahydrofuran; pyridine; methanol; dichloromethane; toluene;
1: Acetylation / 2: Reduction / 3: Acetylation / 4: deacetalization / 5: Wittig olefination / 6: Catalytic hydrogenation / 7: Hydrolysis / 8: Cyclization / 9: Acetylation / 10: Hydrolysis / 11: Moffatt oxidation / 12: ketalization / 13: Zemplen deacetylation / 14: Esterification;
DOI:10.1021/jo990293i
- Guidance literature:
-
Multi-step reaction with 12 steps
1: 47.0 mg / pyridine / 1 h / Heating
2: aqueous acetic acid / 1 h / 20 °C / ultrasound
3: 144 mg / triethylamine / CH2Cl2 / 14 h / 20 °C
4: 96 percent / hydrogen / palladium on activated charcoal / methanol / 18 h / 20 °C / 760 Torr
5: aq. HCl / 48 h / Heating
6: 95 percent / 4-(dimethylamino)pyridine; dicyclohexylcarbodiimide / pyridine / 24 h / 20 °C
7: 77 percent / 4-(dimethylamino)pyridine / CH2Cl2 / 0.33 h
8: aq. phosphate buffer; pig liver esterase (EC 3.1.1.1); KOH / 336 h / 20 °C / pH 7.5
9: 73 percent / DMSO; dicyclohexylcarbodiimide; orthophosphoric acid
10: TsOH / toluene / 3 h / Heating
11: 31.0 mg / NaOMe / methanol / 0.5 h / 20 °C
12: 87 percent / 4-(dimethylamino)pyridine / CH2Cl2 / 24 h
With
pyridine; hydrogenchloride; dmap; potassium hydroxide; phosphate buffer; phosphoric acid; pig liver esterase (EC 3.1.1.1); hydrogen; sodium methylate; toluene-4-sulfonic acid; acetic acid; dimethyl sulfoxide; triethylamine; dicyclohexyl-carbodiimide;
palladium on activated charcoal;
In
pyridine; methanol; dichloromethane; toluene;
1: Acetylation / 2: deacetalization / 3: Wittig olefination / 4: Catalytic hydrogenation / 5: Hydrolysis / 6: Cyclization / 7: Acetylation / 8: Hydrolysis / 9: Moffatt oxidation / 10: ketalization / 11: Zemplen deacetylation / 12: Esterification;
DOI:10.1021/jo990293i