21-Deacetoxy 11-Oxodeflazacort

Base Information

• Chemical Name: 21-Deacetoxy 11-Oxodeflazacort
• CAS No.: 13649-83-7
• Molecular Formula: C₂₃H₂₇NO₄
• Molecular Weight: 381.472
• Mol file: 13649-83-7.mol

Synonyms:21-Deacetoxy 11-Oxodeflazacort;2'-Methyl-5'βH-pregna-1,4-dieno[17,16-d]oxazole-3,11,20-trione

Chemical Property of 21-Deacetoxy 11-Oxodeflazacort

Chemical Property:

• Melting Point: 230-231 °C
• Boiling Point: 546.1±50.0 °C(Predicted)
• PKA: 4.25±0.70(Predicted)
• PSA: 72.80000
• Density: 1.38±0.1 g/cm3(Predicted)
• LogP: 2.66380
• Storage Temp.: Refrigerator
• Solubility.: Chloroform (Slightly), Methanol (Slightly)

Purity/Quality:

98% ^*data from raw suppliers

21-Deacetoxy11-Oxodeflazacort ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: Deflazacort (D228975) derivative, a systematic corticosteroid.

Technology Process of 21-Deacetoxy 11-Oxodeflazacort

There total 6 articles about 21-Deacetoxy 11-Oxodeflazacort 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:

2'-methyl-(5α,16β)-pregnano[17,16-d]oxazole-3,11,20-trione (13649-81-5) → 3,11,20-Trioxo-Δ1.4-pregnadien<17α.16α-d>(2'-methyloxazolin) (13649-83-7)

Guidance literature:

Multistep reaction; (i) Br₂, HBr, AcOH, dioxane, (ii) LiBr, Li₂CO₃, DMF;

DOI:10.1021/jm00317a009

Reference yield:

3β-hydroxy-2'-methyl-(5α,16β)-pregnano[17,16-d]oxazole-11,20-dione (5070-98-4) → 3,11,20-Trioxo-Δ1.4-pregnadien<17α.16α-d>(2'-methyloxazolin) (13649-83-7)

Guidance literature:

Multi-step reaction with 2 steps

1: CrO₃, H₂SO₄ / acetone / 20 °C

2: (i) Br₂, HBr, AcOH, dioxane, (ii) LiBr, Li₂CO₃, DMF

With chromium(VI) oxide; sulfuric acid; In acetone;

DOI:10.1021/jm00317a009

Reference yield:

3β,16α-diacetoxy-17-azido-(5α)-pregnane-11,20-dione → 3,11,20-Trioxo-Δ1.4-pregnadien<17α.16α-d>(2'-methyloxazolin) (13649-83-7)

Guidance literature:

Multi-step reaction with 3 steps

1: (i) H₂, PtO₂, MeOH, (ii) aq. HCl

2: CrO₃, H₂SO₄ / acetone / 20 °C

3: (i) Br₂, HBr, AcOH, dioxane, (ii) LiBr, Li₂CO₃, DMF

With chromium(VI) oxide; sulfuric acid; In acetone;

DOI:10.1021/jm00317a009

upstream raw materials:

2'-methyl-(5α,16β)-pregnano[17,16-d]oxazole-3,11,20-trione

2'-methyl-(5α,16β)-pregn-1-eno[17,16-d]oxazole-3,11,20-trione

3β-hydroxy-2'-methyl-(5α,16β)-pregnano[17,16-d]oxazole-11,20-dione

2ξ-bromo-2'-methyl-(5α,16β)-pregnano[17,16-d]oxazole-3,11,20-trione

Refernces