tert-butyl (2R)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-sulfanylpropanoate

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of (2S)-(+)-glycidyl-4-nitrobenzoate (9, 1.1 eq) and 1M NaOH (1.1 eq) in tBuOH (0.1 M) was stirred at room temperature until complete hydrolysis of the nitrobenzoate (30 minutes). To the resulting mixture, a solution of (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 1 eq) in tBuOH (1 M) was introduced. The reaction was stirred at room temperature for 15 hours. The reaction mixture was concentrated en vacuo to remove tBuOH and dissolved in EtOAc. The EtOAc solution was washed three times with water, and once with brine. The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-90% EtOAc/Hex to give the title product as colorless viscous oil. The reaction mixture was concentrated en vacuo to remove tBuOH dissolved in EtOAc The EtOAc solution was washed three times with water The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of (2S)-(+)-glycidyl-4-nitrobenzoate (9, 1.1 eq) and 1M NaOH (1.1 eq) in tBuOH (0.1 M) was stirred at room temperature until complete hydrolysis of the nitrobenzoate (30 minutes). To the resulting mixture, a solution of (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 1 eq) in tBuOH (1 M) was introduced. The reaction was stirred at room temperature for 15 hours. The reaction mixture was concentrated en vacuo to remove tBuOH and dissolved in EtOAc. The EtOAc solution was washed three times with water, and once with brine. The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-90% EtOAc/Hex to give the title product as colorless viscous oil. The reaction mixture was concentrated en vacuo to remove tBuOH dissolved in EtOAc The EtOAc solution was washed three times with water The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO)

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (R)-2-azido-3-(hexadecyloxy)propyl trifluoromethanesulfonate (1 eq), (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 2 eq) and K2CO3 (1 eq) in EtOH (0.1 M) was stirred for 30 min at 60° C. The reaction mixture was filtered and washed with DCM. The filtrate was concentrated en vaccuo. The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-20% EtOAc/Hex to give (5R,9R)-tert-butyl 9-azido-1-(9H-fluoren-9-yl)-3-oxo-2,11-dioxa-7-thia-4-azaheptacosane-5-carboxylate. The reaction mixture was filtered washed with DCM The filtrate was concentrated en vaccuo The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of (S)-2-((dodecyloxy)methyl)oxirane (1.1 eq), (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 1 eq) and 1M K2CO3 (1.1 eq) in tBuOH (0.1 M) was stirred at 25° C. for 15 hours. The reaction mixture was concentrated en vaccuo to remove tBuOH and dissolved in EtOAc. The EtOAc solution was washed three times with water, and once with brine. The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-30% EtOAc/Hex to give the title product as a colorless viscous oil. The reaction mixture was concentrated en vaccuo to remove tBuOH dissolved in EtOAc The EtOAc solution was washed three times with water The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO)

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of (R)-2,3-bis(dodecyloxy)propyl trifluoromethanesulfonate (1 eq) in ethanol (0.15 M) was added (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 1.5 eq) and potassium carbonate (1 eq). The reaction mixture was stirred at 60° C. for 30 minutes. The salt from the reaction was filtered off and the filtrate was concentrated en vaccuo. The crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-40% EtOAc/Hex to give the product. The salt from the reaction was filtered off the filtrate was concentrated en vaccuo The crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO) to give the product

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of (R)-2,3-bis(dodecyloxy)propyl trifluoromethanesulfonate (1 eq) in ethanol (0.15 M) was added (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 1.5 eq) and potassium carbonate (1 eq). The reaction mixture was stirred at 60° C. for 30 minutes. The salt from the reaction was filtered off and the filtrate was concentrated en vaccuo. The crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-40% EtOAc/Hex to give the product. The salt from the reaction was filtered off the filtrate was concentrated en vaccuo The crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO) to give the product

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (R)-2,3-bis(hexadecyloxy)propyl trifluoromethanesulfonate (1 eq), (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 2 eq) and K2CO3 (1 eq) in EtOH (0.1 M) was stirred for 30 minutes at 60° C. The reaction mixture was filtered and washed with DCM. The filtrate was concentrated en vaccuo. The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-20% EtOAc/Hex to give (5R,9R)-tert-butyl 1-(9H-fluoren-9-yl)-9-(hexadecyloxy)-3-oxo-2,11-dioxa-7-thia-4-azaheptacosane-5-carboxylate as a colorless oil. The reaction mixture was filtered washed with DCM The filtrate was concentrated en vaccuo The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO)

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (R)-2,3-bis(hexadecyloxy)propyl trifluoromethanesulfonate (1 eq), (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 2 eq) and K2CO3 (1 eq) in EtOH (0.1 M) was stirred for 30 minutes at 60° C. The reaction mixture was filtered and washed with DCM. The filtrate was concentrated en vaccuo. The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-20% EtOAc/Hex to give (5R,9R)-tert-butyl 1-(9H-fluoren-9-yl)-9-(hexadecyloxy)-3-oxo-2,11-dioxa-7-thia-4-azaheptacosane-5-carboxylate as a colorless oil. The reaction mixture was filtered washed with DCM The filtrate was concentrated en vaccuo The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of (25)-(+)-glycidyl-4-nitrobenzoate (9, 1.1 eq) and 1M NaOH (1.1 eq) in tBuOH (0.1 M) was stirred at room temperature until complete hydrolysis of the nitrobenzoate (30 minutes). To the resulting mixture, a solution of (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 1 eq) in tBuOH (1 M) was introduced. The reaction was stirred at room temperature for 15 hours. The reaction mixture was concentrated en vaccuo to remove tBuOH and dissolved in EtOAc. The EtOAc solution was washed three times with water, and once with brine. The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-90% EtOAc/Hex to give the title product as colorless viscous oil. The reaction mixture was concentrated en vaccuo to remove tBuOH dissolved in EtOAc The EtOAc solution was washed three times with water The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of (S)-2-((dodecyloxy)methyl)oxirane (1.1 eq), (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 1 eq) and 1M K2CO3 (1.1 eq) in tBuOH (0.1 M) was stirred at 25° C. for 15 hours. The reaction mixture was concentrated en vaccuo to remove tBuOH and dissolved in EtOAc. The EtOAc solution was washed three times with water, and once with brine. The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-30% EtOAc/Hex to give the title product as a colorless viscous oil. The reaction mixture was concentrated en vaccuo to remove tBuOH dissolved in EtOAc The EtOAc solution was washed three times with water The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO)

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of (R)-2,3-bis(dodecyloxy)propyl trifluoromethanesulfonate (1 eq) in ethanol (0.15 M) was added (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 1.5 eq) and potassium carbonate (1 eq). The reaction mixture was stirred at 60° C. for 30 minutes. The salt from the reaction was filtered off and the filtrate was concentrated en vaccuo. The crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-40% EtOAc/Hex to give the product. The salt from the reaction was filtered off the filtrate was concentrated en vaccuo The crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO) to give the product

反応条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (R)-2-azido-3-(hexadecyloxy)propyl trifluoromethanesulfonate (1 eq), (R)-tert-butyl 2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-3-mercaptopropanoate (8, 2 eq) and K2CO3 (1 eq) in EtOH (0.1 M) was stirred for 30 min at 60° C. The reaction mixture was filtered and washed with DCM. The filtrate was concentrated en vaccuo. The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-20% EtOAc/Hex to give (5R,9R)-tert-butyl 9-azido-1-(9H-fluoren-9-yl)-3-oxo-2,11-dioxa-7-thia-4-azaheptacosane-5-carboxylate. The reaction mixture was filtered washed with DCM The filtrate was concentrated en vaccuo The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO)