(9R)-2'-O-acetyl-9--12,21-didehydro-9-deoxoerythromycin B

Base Information

Chemical Name:(9R)-2'-O-acetyl-9--12,21-didehydro-9-deoxoerythromycin B
CAS No.:137255-42-6
Molecular Formula:C₄₇H₇₆N₂O₁₄
Molecular Weight:893.125
Hs Code.:

(9R)-2'-O-acetyl-9-<N-(carbobenzyloxy)amino>-12,21-didehydro-9-deoxoerythromycin B

Synonyms:(9R)-2'-O-acetyl-9--12,21-didehydro-9-deoxoerythromycin B

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of (9R)-2'-O-acetyl-9--12,21-didehydro-9-deoxoerythromycin B

Chemical Property:

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Technology Process of (9R)-2'-O-acetyl-9--12,21-didehydro-9-deoxoerythromycin B

There total 7 articles about (9R)-2'-O-acetyl-9--12,21-didehydro-9-deoxoerythromycin B 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: 89.0%

: 108-24-7
acetic anhydride

: 137233-62-6
(9R)-9--12,21-didehydro-9-deoxoerythromycin B

: 137255-42-6
(9R)-2'-O-acetyl-9--12,21-didehydro-9-deoxoerythromycin B

Guidance literature:: In dichloromethane; for 20h;
DOI:10.1021/jm00116a008

Reference yield:

: 13139-17-8
N-(Benzyloxycarbonyloxy)succinimide

: 137255-42-6
(9R)-2'-O-acetyl-9--12,21-didehydro-9-deoxoerythromycin B

Guidance literature:: Multi-step reaction with 6 steps

1: 94 percent / CH₂Cl₂ / 1.5 h / Ambient temperature

2: 87 percent / CH₂Cl₂ / 4 h / Ambient temperature

3: 88 percent / 4-(dimethylamino)pyridine / CH₂Cl₂ / 48 h / Ambient temperature

4: 55 percent / thionyl chloride, triethylamine / ethyl acetate / 0.5 h / 0 °C

5: 76 percent / triethylamine / methanol / 18 h / Heating

6: 89 percent / CH₂Cl₂ / 20 h

With dmap; thionyl chloride; triethylamine; In methanol; dichloromethane; ethyl acetate;
DOI:10.1021/jm00116a008

Reference yield:

: 13147-55-2
9α-aminoerythromycin A

: 137255-42-6
(9R)-2'-O-acetyl-9--12,21-didehydro-9-deoxoerythromycin B

Guidance literature:: Multi-step reaction with 6 steps

1: 94 percent / CH₂Cl₂ / 1.5 h / Ambient temperature

2: 87 percent / CH₂Cl₂ / 4 h / Ambient temperature

3: 88 percent / 4-(dimethylamino)pyridine / CH₂Cl₂ / 48 h / Ambient temperature

4: 55 percent / thionyl chloride, triethylamine / ethyl acetate / 0.5 h / 0 °C

5: 76 percent / triethylamine / methanol / 18 h / Heating

6: 89 percent / CH₂Cl₂ / 20 h

With dmap; thionyl chloride; triethylamine; In methanol; dichloromethane; ethyl acetate;
DOI:10.1021/jm00116a008