(R)-(1-ethoxycarbonyl-ethyl)-(S)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate

Base Information

• Chemical Name: (R)-(1-ethoxycarbonyl-ethyl)-(S)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate
• CAS No.: 143426-85-1
• Molecular Formula: C₂₁H₂₁Cl₂N₃O₅
• Molecular Weight: 466.321

Synonyms:(R)-(1-ethoxycarbonyl-ethyl)-(S)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate

Chemical Property of (R)-(1-ethoxycarbonyl-ethyl)-(S)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
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MSDS Files:

SDS file from LookChem

Useful:

Technology Process of (R)-(1-ethoxycarbonyl-ethyl)-(S)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate

There total 15 articles about (R)-(1-ethoxycarbonyl-ethyl)-(S)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate 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: 57.0%

cis/trans-2-(1-(2,3-dichlorobenzylidene)-acetonyl)-1,3,4-oxadiazol (103946-24-3) + (R)-(1-ethoxycarbonyl-ethyl)-aminocrotonate (143426-82-8) → (R)-(1-ethoxycarbonyl-ethyl)-(S)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate (143426-85-1) + (R)-(1-ethoxycarbonyl-ethyl)-(R)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate (103946-21-0,143426-85-1,143426-86-2)

Guidance literature:

In dimethyl sulfoxide; at 80 ℃; for 15h;

DOI:10.1016/0223-5234(92)90006-M

Reference yield: 57.0%

cis/trans-2-(1-(2,3-dichlorobenzylidene)-acetonyl)-1,3,4-oxadiazol (103946-24-3) + (R)-(1-ethoxycarbonyl-ethyl)-aminocrotonate (143426-82-8) → (R)-(1-ethoxycarbonyl-ethyl)-(S)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate (143426-85-1) + (R)-(1-ethoxycarbonyl-ethyl)-(R)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate (103946-21-0,143426-85-1,143426-86-2)

Guidance literature:

In dimethyl sulfoxide; at 80 ℃; for 15h;

DOI:10.1016/0223-5234(92)90006-M

Reference yield: 57.0%

cis/trans-2-(1-(2,3-dichlorobenzylidene)-acetonyl)-1,3,4-oxadiazol (103946-24-3) + (S)-(1-ethoxycarbonyl-ethyl)-aminocrotonate (103946-25-4) → (S)-(1-ethoxycarbonyl-ethyl)-(S)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate (103946-21-0,143426-85-1,143426-86-2) + (S)-(1-ethoxycarbonyl-ethyl)-(R)-1,4-dihydro-2,6-dimethyl-4-(2,3-dichlorophenyl)-5-(1,3,4-oxadiazol-2-yl)-pyridine-3-carboxylate (143426-86-2)

Guidance literature:

In dimethyl sulfoxide; at 80 ℃; for 15h; Title compound not separated from byproducts;

DOI:10.1016/0223-5234(92)90006-M

upstream raw materials:

cis/trans-2-(1-(2,3-dichlorobenzylidene)-acetonyl)-1,3,4-oxadiazol

(R)-(1-ethoxycarbonyl-ethyl)-aminocrotonate

(R)-Ethyl lactate

2,3-dichlorobenzylaldehyde

Downstream raw materials:

elnadipine

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