3β,28-diacetoxy-18-oxo-19,20,21,29,30-pentanorlupan-22-oic acid

Base Information

• Chemical Name: 3β,28-diacetoxy-18-oxo-19,20,21,29,30-pentanorlupan-22-oic acid
• CAS No.: 374898-86-9
• Molecular Formula: C₂₉H₄₄O₇
• Molecular Weight: 504.664
• Mol file: 374898-86-9.mol

Synonyms:3β,28-diacetoxy-18-oxo-19,20,21,29,30-pentanorlupan-22-oic acid

Chemical Property of 3β,28-diacetoxy-18-oxo-19,20,21,29,30-pentanorlupan-22-oic acid

Chemical Property:

Purity/Quality:

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Technology Process of 3β,28-diacetoxy-18-oxo-19,20,21,29,30-pentanorlupan-22-oic acid

There total 1 articles about 3β,28-diacetoxy-18-oxo-19,20,21,29,30-pentanorlupan-22-oic acid 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: 36.0%

21,22-Dioxolup-18-ene-3β,28-diyl diacetate (226384-06-1) → 3β,28-diacetoxy-18-oxo-19,20,21,29,30-pentanorlupan-22-oic acid (374898-86-9) + Acetic acid (2S,4aR,4bR,6aR,8S,10aR,10bR,12aS)-8-acetoxy-4a,4b,7,7,10a-pentamethyl-2-(4-methyl-2,3-dioxo-pentanoyl)-1-oxo-octadecahydro-chrysen-2-ylmethyl ester (374898-85-8)

Guidance literature:

With ruthenium(IV) oxide; sodium periodate; trifluoroacetic acid; In ethyl acetate; acetonitrile; at 20 ℃; for 20h;

DOI:10.1021/jm020854p

Reference yield: 46.0%

3β,28-diacetoxy-18-oxo-19,20,21,29,30-pentanorlupan-22-oic acid (374898-86-9) + Benzyl bromoacetate (5437-45-6) → benzyloxycarbonylmethyl 3β,28-diacetoxy-18-oxo-19,20,21,29,30-penta-norlupan-22-oate

Guidance literature:

With silver carbonate; In N,N-dimethyl-formamide; at 20 ℃; for 72h;

DOI:10.1016/j.ejmech.2017.09.041

upstream raw materials:

21,22-Dioxolup-18-ene-3β,28-diyl diacetate