3-Isopropyl-5aα,5bβ,10,10,13bα-pentamethyl-11α,7aα-(epoxymethano)-2,4,5,5a,5b,6,7,7a,8,9,10,11,11aβ,11bα,12,13,13aβ,13b-octadecahydro-1H-cyclopenta[a]chrysene

Base Information

• Chemical Name: 3-Isopropyl-5aα,5bβ,10,10,13bα-pentamethyl-11α,7aα-(epoxymethano)-2,4,5,5a,5b,6,7,7a,8,9,10,11,11aβ,11bα,12,13,13aβ,13b-octadecahydro-1H-cyclopenta[a]chrysene
• CAS No.: 6714-21-2
• Molecular Formula: C30H48 O
• Molecular Weight: 424.711
• Mol file: 6714-21-2.mol

Synonyms:A-Neo-18a-olean-3(5)-ene, 19b,28-epoxy- (7CI,8CI);A-Neoolean-3(5)-ene, 19,28-epoxy-, (18a,19b)-; 11,7a-(Epoxymethano)-7aH-cyclopenta[a]chrysene,1,2,4,5,5a,5b,6,7,8,9,10,11,11a,11b,12,13,13a,13b-octadecahydro-5a,5b,10,10,13b-pentamethyl-3-(1-methylethyl)-,[5aR-(5aa,5bb,7aa,11a,11ab,11ba,13ab,13ba)]-; 19b,28-Epoxy-4,5-seco-3,5-cyclo-18a-olean-3(5)-ene; a-Allobetulin; a-Apoallobetulin

Chemical Property of 3-Isopropyl-5aα,5bβ,10,10,13bα-pentamethyl-11α,7aα-(epoxymethano)-2,4,5,5a,5b,6,7,7a,8,9,10,11,11aβ,11bα,12,13,13aβ,13b-octadecahydro-1H-cyclopenta[a]chrysene

Chemical Property:

• PSA: 9.23000
• LogP: 8.18690

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
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MSDS Files:

Useful:

Technology Process of 3-Isopropyl-5aα,5bβ,10,10,13bα-pentamethyl-11α,7aα-(epoxymethano)-2,4,5,5a,5b,6,7,7a,8,9,10,11,11aβ,11bα,12,13,13aβ,13b-octadecahydro-1H-cyclopenta[a]chrysene

There total 2 articles about 3-Isopropyl-5aα,5bβ,10,10,13bα-pentamethyl-11α,7aα-(epoxymethano)-2,4,5,5a,5b,6,7,7a,8,9,10,11,11aβ,11bα,12,13,13aβ,13b-octadecahydro-1H-cyclopenta[a]chrysene 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: 60.0%

betulin monoacetate (27570-20-3) + 2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide (572-09-8) → betulin diacetate (1721-69-3) + 19β,28-epoxy-A-neo-18α-olean-3(5)-ene (6714-21-2) + 3β-O-acetyl-19β,28-epoxy-18αH-oleanane (10246-36-3) + 3-O-acetylbetulin 28-O-(2',3',4',6'-tetra-O-acetyl-β-D-glucopyranoside) (35823-96-2)

Guidance literature:

With cadmium(II) carbonate; In toluene; for 2.5h; Heating; presence of moleculare sieve 4 Angstroem in Soxhlet apparatus;

DOI:10.1007/BF00596745

Reference yield: 41.4%

betulin monoacetate (27570-20-3) + 2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide (572-09-8) → betulin diacetate (1721-69-3) + 19β,28-epoxy-A-neo-18α-olean-3(5)-ene (6714-21-2) + 3β-O-acetyl-19β,28-epoxy-18αH-oleanane (10246-36-3) + Acetic acid (1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-3a-((2S,3S,4R,5S,6S)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-yloxymethyl)-icosahydro-cyclopenta[a]chrysen-9-yl ester (35823-96-2)

Guidance literature:

With cadmium(II) carbonate; In toluene; for 3h; Heating;

DOI:10.1007/BF00579477

upstream raw materials:

betulin monoacetate

2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide

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