Acetic acid (1R,5S)-3-[2-[(1R,3aS,7aR)-1-((R)-5-ethyl-4,4-difluoro-5-hydroxy-1-methyl-heptyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(E)-ylidene]-5-hydroxy-4-methylene-cyclohexyl ester

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Chemical Name:Acetic acid (1R,5S)-3-[2-[(1R,3aS,7aR)-1-((R)-5-ethyl-4,4-difluoro-5-hydroxy-1-methyl-heptyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(E)-ylidene]-5-hydroxy-4-methylene-cyclohexyl ester
CAS No.:123836-14-6
Molecular Formula:C₃₁H₄₈F₂O₄
Molecular Weight:522.717
Hs Code.:

Acetic acid (1R,5S)-3-[2-[(1R,3aS,7aR)-1-((R)-5-ethyl-4,4-difluoro-5-hydroxy-1-methyl-heptyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(E)-ylidene]-5-hydroxy-4-methylene-cyclohexyl ester

Synonyms:Acetic acid (1R,5S)-3-[2-[(1R,3aS,7aR)-1-((R)-5-ethyl-4,4-difluoro-5-hydroxy-1-methyl-heptyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(E)-ylidene]-5-hydroxy-4-methylene-cyclohexyl ester

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Chemical Property of Acetic acid (1R,5S)-3-[2-[(1R,3aS,7aR)-1-((R)-5-ethyl-4,4-difluoro-5-hydroxy-1-methyl-heptyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(E)-ylidene]-5-hydroxy-4-methylene-cyclohexyl ester

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Technology Process of Acetic acid (1R,5S)-3-[2-[(1R,3aS,7aR)-1-((R)-5-ethyl-4,4-difluoro-5-hydroxy-1-methyl-heptyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(E)-ylidene]-5-hydroxy-4-methylene-cyclohexyl ester

There total 17 articles about Acetic acid (1R,5S)-3-[2-[(1R,3aS,7aR)-1-((R)-5-ethyl-4,4-difluoro-5-hydroxy-1-methyl-heptyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(E)-ylidene]-5-hydroxy-4-methylene-cyclohexyl ester 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:

Reference yield: 13.0%

: 123836-12-4
24,24-difluoro-1α,25-dihydroxy-26,27-dimethyl-3,5-cyclovitamin D3

: 64-19-7,77671-22-8
acetic acid

: 123836-13-5
24,24-difluoro-1α,25-dihydroxy-26,27-dimethylvitamin D3 3-acetate

: 123836-14-6
Acetic acid (1R,5S)-3-[2-[(1R,3aS,7aR)-1-((R)-5-ethyl-4,4-difluoro-5-hydroxy-1-methyl-heptyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(E)-ylidene]-5-hydroxy-4-methylene-cyclohexyl ester

Guidance literature:: at 55 ℃; for 0.25h;
DOI:10.1021/jm00164a003

Reference yield:

: 23976-71-8
3β-acetoxy-23-diazo-24-nor-chol-5-en-22-one

: 123836-14-6
Acetic acid (1R,5S)-3-[2-[(1R,3aS,7aR)-1-((R)-5-ethyl-4,4-difluoro-5-hydroxy-1-methyl-heptyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(E)-ylidene]-5-hydroxy-4-methylene-cyclohexyl ester

Guidance literature:: Multi-step reaction with 20 steps

1: silver benzoate, triethylamine / CH₂Cl₂ / Ambient temperature; overnight

2: 0.1 M potassium hydroxide / methanol; tetrahydrofuran / 4 h / Ambient temperature

3: diisopropylethylamine / CH₂Cl₂ / 16 h / Ambient temperature

4: 96 percent / lithium aluminum hydride / tetrahydrofuran / 3 h / Ambient temperature

5: 90 percent / sodium acetate, pyridinium chlorochromate (PCC) / CH₂Cl₂ / 4 h / Ambient temperature

6: 64 percent / zinc dust / tetrahydrofuran / 0.5 h / Heating

7: 98 percent / 1,2-dichloro-ethane / 17 h / 72 °C

8: 94 percent / tributyltin hydride / toluene / 0.92 h / Heating

9: tetrahydrofuran / 0.5 h / -78 °C

10: 25 percent / pyridinium chlorochromate, powdered 3A molecular sieves / CH₂Cl₂ / 6.5 h / Ambient temperature

11: 100 percent / p-toluenesulfonic acid / methanol; tetrahydrofuran / 60 h / Ambient temperature

12: 92 percent / pyridine / 16 h / Ambient temperature

14: 81 percent / lithium aluminum hydride / tetrahydrofuran / 3 h / Heating

15: diethyl ether / 1.11 h / 0 °C / Irradiation

16: ethanol / 2 h / Heating

17: pyridine / 40 h / 0 - 4 °C

18: sodium bicarbonate / 8 h / 55 °C

19: 37 percent / tert-butyl hydroperoxide, selenium dioxide / CH₂Cl₂ / 1.) 0 deg C, 5 min, 2.) room temp., 30 min

20: 13 percent / 0.25 h / 55 °C

With tert.-butylhydroperoxide; potassium hydroxide; lithium aluminium tetrahydride; selenium(IV) oxide; 3 A molecular sieve; tri-n-butyl-tin hydride; sodium acetate; silver benzoate; sodium hydrogencarbonate; toluene-4-sulfonic acid; triethylamine; N-ethyl-N,N-diisopropylamine; pyridinium chlorochromate; zinc; In tetrahydrofuran; pyridine; methanol; diethyl ether; ethanol; dichloromethane; 1,2-dichloro-ethane; toluene;
DOI:10.1021/jm00164a003

Reference yield:

: 67711-02-8,55103-88-3
3β-acetoxy-23,24-dinorchol-5-en-22-oyl chloride

: 123836-14-6
Acetic acid (1R,5S)-3-[2-[(1R,3aS,7aR)-1-((R)-5-ethyl-4,4-difluoro-5-hydroxy-1-methyl-heptyl)-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(E)-ylidene]-5-hydroxy-4-methylene-cyclohexyl ester

Guidance literature:: Multi-step reaction with 21 steps

1: diethyl ether; benzene / 15 h / Ambient temperature

2: silver benzoate, triethylamine / CH₂Cl₂ / Ambient temperature; overnight

3: 0.1 M potassium hydroxide / methanol; tetrahydrofuran / 4 h / Ambient temperature

4: diisopropylethylamine / CH₂Cl₂ / 16 h / Ambient temperature

5: 96 percent / lithium aluminum hydride / tetrahydrofuran / 3 h / Ambient temperature

6: 90 percent / sodium acetate, pyridinium chlorochromate (PCC) / CH₂Cl₂ / 4 h / Ambient temperature

7: 64 percent / zinc dust / tetrahydrofuran / 0.5 h / Heating

8: 98 percent / 1,2-dichloro-ethane / 17 h / 72 °C

9: 94 percent / tributyltin hydride / toluene / 0.92 h / Heating

10: tetrahydrofuran / 0.5 h / -78 °C

11: 25 percent / pyridinium chlorochromate, powdered 3A molecular sieves / CH₂Cl₂ / 6.5 h / Ambient temperature

12: 100 percent / p-toluenesulfonic acid / methanol; tetrahydrofuran / 60 h / Ambient temperature

13: 92 percent / pyridine / 16 h / Ambient temperature

15: 81 percent / lithium aluminum hydride / tetrahydrofuran / 3 h / Heating

16: diethyl ether / 1.11 h / 0 °C / Irradiation

17: ethanol / 2 h / Heating

18: pyridine / 40 h / 0 - 4 °C

19: sodium bicarbonate / 8 h / 55 °C

20: 37 percent / tert-butyl hydroperoxide, selenium dioxide / CH₂Cl₂ / 1.) 0 deg C, 5 min, 2.) room temp., 30 min

21: 13 percent / 0.25 h / 55 °C

With tert.-butylhydroperoxide; potassium hydroxide; lithium aluminium tetrahydride; selenium(IV) oxide; 3 A molecular sieve; tri-n-butyl-tin hydride; sodium acetate; silver benzoate; sodium hydrogencarbonate; toluene-4-sulfonic acid; triethylamine; N-ethyl-N,N-diisopropylamine; pyridinium chlorochromate; zinc; In tetrahydrofuran; pyridine; methanol; diethyl ether; ethanol; dichloromethane; 1,2-dichloro-ethane; toluene; benzene;
DOI:10.1021/jm00164a003