Technology Process of (+)-(1R,2S)-3-(benzyloxy)-1-{[(1R,9aS,9bS)-1,3,3a,4,5,7,8,9,9a,9b-decahydro-1-methoxy-9a,9b-dimethyl-7-oxonaphtho[1,2-c]furan-6-yl]methyl}-3-methyl-2-[(methylsulfanyl)methoxy]butyl benzenecarboxylate
There total 15 articles about (+)-(1R,2S)-3-(benzyloxy)-1-{[(1R,9aS,9bS)-1,3,3a,4,5,7,8,9,9a,9b-decahydro-1-methoxy-9a,9b-dimethyl-7-oxonaphtho[1,2-c]furan-6-yl]methyl}-3-methyl-2-[(methylsulfanyl)methoxy]butyl benzenecarboxylate 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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671792-49-7
Benzoic acid (1R,2S)-3-benzyloxy-1-[(1R,3aR,9aS,9bS)-7-(dimethyl-hydrazono)-1-methoxy-9a,9b-dimethyl-1,3,3a,4,5,7,8,9,9a,9b-decahydro-naphtho[1,2-c]furan-6-ylmethyl]-3-methyl-2-methylsulfanylmethoxy-butyl ester
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671792-30-6
(+)-(1R,2S)-3-(benzyloxy)-1-{[(1R,9aS,9bS)-1,3,3a,4,5,7,8,9,9a,9b-decahydro-1-methoxy-9a,9b-dimethyl-7-oxonaphtho[1,2-c]furan-6-yl]methyl}-3-methyl-2-[(methylsulfanyl)methoxy]butyl benzenecarboxylate
- Guidance literature:
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With
sodium acetate; acetic acid;
In
benzene;
at 65 ℃;
for 25h;
DOI:10.1002/hlca.200390328
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671792-30-6
(+)-(1R,2S)-3-(benzyloxy)-1-{[(1R,9aS,9bS)-1,3,3a,4,5,7,8,9,9a,9b-decahydro-1-methoxy-9a,9b-dimethyl-7-oxonaphtho[1,2-c]furan-6-yl]methyl}-3-methyl-2-[(methylsulfanyl)methoxy]butyl benzenecarboxylate
- Guidance literature:
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Multi-step reaction with 9 steps
1: 91 percent / O3; PPh3 / CH2Cl2 / 1.5 h / -78 °C
2: 90 percent / tetrahydrofuran; diethyl ether / 1 h / 20 °C
3: 58 percent / AcOH; Ac2O / 38 h / 20 °C
4: 96 percent / NaH; Bu4NI / tetrahydrofuran / 0 - 20 °C
5: 90 percent / (+)-camphorsulfonic acid / methanol; H2O / 2.5 h / 65 °C
6: 91 percent / NaH; 1-tosyl-1H-imidazole / tetrahydrofuran / -78 - 0 °C / 2.2 Torr
7: LiNEt2; DMPU; chiral octahydronaphthalene dimethylhydrazone / tetrahydrofuran; hexane / 17 h / -40 - 65 °C
8: DMAP / CH2Cl2 / 18 h / 20 °C
9: 91.4 mg / AcONa; AcOH / benzene / 25 h / 65 °C
With
dmap; 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; chiral octahydronaphthalene dimethylhydrazone; lithium diethylamide; sodium acetate; acetic anhydride; tetra-(n-butyl)ammonium iodide; sodium hydride; ozone; acetic acid; (+)-10-camphorsulfonic acid; triphenylphosphine; N-tosylimidazole;
In
tetrahydrofuran; methanol; diethyl ether; hexane; dichloromethane; water; benzene;
DOI:10.1002/hlca.200390328
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671792-30-6
(+)-(1R,2S)-3-(benzyloxy)-1-{[(1R,9aS,9bS)-1,3,3a,4,5,7,8,9,9a,9b-decahydro-1-methoxy-9a,9b-dimethyl-7-oxonaphtho[1,2-c]furan-6-yl]methyl}-3-methyl-2-[(methylsulfanyl)methoxy]butyl benzenecarboxylate
- Guidance literature:
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Multi-step reaction with 8 steps
1: 90 percent / tetrahydrofuran; diethyl ether / 1 h / 20 °C
2: 58 percent / AcOH; Ac2O / 38 h / 20 °C
3: 96 percent / NaH; Bu4NI / tetrahydrofuran / 0 - 20 °C
4: 90 percent / (+)-camphorsulfonic acid / methanol; H2O / 2.5 h / 65 °C
5: 91 percent / NaH; 1-tosyl-1H-imidazole / tetrahydrofuran / -78 - 0 °C / 2.2 Torr
6: LiNEt2; DMPU; chiral octahydronaphthalene dimethylhydrazone / tetrahydrofuran; hexane / 17 h / -40 - 65 °C
7: DMAP / CH2Cl2 / 18 h / 20 °C
8: 91.4 mg / AcONa; AcOH / benzene / 25 h / 65 °C
With
dmap; 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; chiral octahydronaphthalene dimethylhydrazone; lithium diethylamide; sodium acetate; acetic anhydride; tetra-(n-butyl)ammonium iodide; sodium hydride; acetic acid; (+)-10-camphorsulfonic acid; N-tosylimidazole;
In
tetrahydrofuran; methanol; diethyl ether; hexane; dichloromethane; water; benzene;
DOI:10.1002/hlca.200390328