tert-butyl 4-(2-(((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(4-(tert-butoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-3a-yl)methylamino)ethyl)piperazine-1-carboxylate

Base Information

• Chemical Name: tert-butyl 4-(2-(((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(4-(tert-butoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-3a-yl)methylamino)ethyl)piperazine-1-carboxylate
• CAS No.: 1392113-19-7
• Molecular Formula: C₅₂H₈₁N₃O₄
• Molecular Weight: 812.233
• Mol file: 1392113-19-7.mol

Synonyms:tert-butyl 4-(2-(((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(4-(tert-butoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-3a-yl)methylamino)ethyl)piperazine-1-carboxylate

Chemical Property of tert-butyl 4-(2-(((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(4-(tert-butoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-3a-yl)methylamino)ethyl)piperazine-1-carboxylate

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of tert-butyl 4-(2-(((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(4-(tert-butoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-3a-yl)methylamino)ethyl)piperazine-1-carboxylate

There total 7 articles about tert-butyl 4-(2-(((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(4-(tert-butoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-3a-yl)methylamino)ethyl)piperazine-1-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:

tert-butyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-formyl-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate (1392113-11-9) + tert-butyl 4-(2-aminoethyl)piperazine-1-carboxylate (192130-34-0) → tert-butyl 4-(2-(((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(4-(tert-butoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-3a-yl)methylamino)ethyl)piperazine-1-carboxylate (1392113-19-7)

Guidance literature:

tert-butyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-formyl-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate; tert-butyl 4-(2-aminoethyl)piperazine-1-carboxylate; With acetic acid; In 1,2-dichloro-ethane; at 20 ℃; for 2h; Inert atmosphere;

With sodium tris(acetoxy)borohydride; In 1,2-dichloro-ethane; at 20 ℃; for 72h;

Reference yield:

betulin (473-98-3) → tert-butyl 4-(2-(((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(4-(tert-butoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-3a-yl)methylamino)ethyl)piperazine-1-carboxylate (1392113-19-7)

Guidance literature:

Multi-step reaction with 7 steps

1.1: pyridine / dmap / 50 °C / Inert atmosphere

1.2: 5 h / 50 °C

2.1: pyridinium chlorochromate / dichloromethane / 7.25 h / 20 °C / Inert atmosphere

3.1: potassium hexamethylsilazane / tetrahydrofuran / 0.25 h / -78 °C / Inert atmosphere

3.2: 4.5 h / -78 °C

4.1: sodium carbonate monohydrate / tetrakis(triphenylphosphine) palladium⁽⁰⁾ / isopropyl alcohol; 1,4-dioxane; water / 3.5 h / Inert atmosphere

5.1: water; lithium hydroxide monohydrate / 1,4-dioxane / 25.5 h / 75 °C / Inert atmosphere

6.1: pyridinium chlorochromate / dichloromethane / 6.5 h / 20 °C / Inert atmosphere

7.1: acetic acid / 1,2-dichloro-ethane / 2 h / 20 °C / Inert atmosphere

7.2: 72 h / 20 °C

With pyridine; sodium carbonate monohydrate; lithium hydroxide monohydrate; water; potassium hexamethylsilazane; acetic acid; pyridinium chlorochromate; dmap; tetrakis(triphenylphosphine) palladium⁽⁰⁾; In tetrahydrofuran; 1,4-dioxane; dichloromethane; water; 1,2-dichloro-ethane; isopropyl alcohol; 4.1: Suzuki Coupling;

Reference yield:

((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-9-hydroxy-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-3a-yl)methyl benzoate (1350915-24-0) → tert-butyl 4-(2-(((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-9-(4-(tert-butoxycarbonyl)phenyl)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-3a-yl)methylamino)ethyl)piperazine-1-carboxylate (1392113-19-7)

Guidance literature:

Multi-step reaction with 6 steps

1.1: pyridinium chlorochromate / dichloromethane / 7.25 h / 20 °C / Inert atmosphere

2.1: potassium hexamethylsilazane / tetrahydrofuran / 0.25 h / -78 °C / Inert atmosphere

2.2: 4.5 h / -78 °C

3.1: sodium carbonate monohydrate / tetrakis(triphenylphosphine) palladium⁽⁰⁾ / isopropyl alcohol; 1,4-dioxane; water / 3.5 h / Inert atmosphere

4.1: water; lithium hydroxide monohydrate / 1,4-dioxane / 25.5 h / 75 °C / Inert atmosphere

5.1: pyridinium chlorochromate / dichloromethane / 6.5 h / 20 °C / Inert atmosphere

6.1: acetic acid / 1,2-dichloro-ethane / 2 h / 20 °C / Inert atmosphere

6.2: 72 h / 20 °C

With sodium carbonate monohydrate; lithium hydroxide monohydrate; water; potassium hexamethylsilazane; acetic acid; pyridinium chlorochromate; tetrakis(triphenylphosphine) palladium⁽⁰⁾; In tetrahydrofuran; 1,4-dioxane; dichloromethane; water; 1,2-dichloro-ethane; isopropyl alcohol; 3.1: Suzuki Coupling;

upstream raw materials:

tert-butyl 4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-3a-formyl-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoate

tert-butyl 4-(2-aminoethyl)piperazine-1-carboxylate

betulin

((1R,3aS,5aR,5bR,7aR,9S,11aR,11bR,13aR,13bR)-9-hydroxy-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)icosahydro-1H-cyclopenta[a]chrysen-3a-yl)methyl benzoate

Downstream raw materials:

4-((1R,3aS,5aR,5bR,7aR,11aS,11bR,13aR,13bR)-5a,5b,8,8,11a-pentamethyl-3a-((2-(piperazin-1-yl)ethylamino)methyl)-1-(prop-1-en-2-yl)-2,3,3a,4,5,5a,5b,6,7,7a,8,11,11a,11b,12,13,13a,13b-octadecahydro-1H-cyclopenta[a]chrysen-9-yl)benzoic acid