Dalargin

Base Information

• Chemical Name: Dalargin
• CAS No.: 81733-79-1
• Molecular Formula: C₃₅H₅₁N₉O₈
• Molecular Weight: 725.845
• UNII: V13505565P
• DSSTox Substance ID: DTXSID50231302
• Nikkaji Number: J356.230A
• Wikidata: Q27291394
• Mol file: 81733-79-1.mol

Synonyms:2-Ala-6-Arg-Leu-enkephalin;dalargin;enkephalin, Ala(2)-Leu(5)-Arg(6)-;enkephalin-Leu, Ala(2)-Arg(6)-;enkephalin-Leu, Ala(2)-Arg(6)-, (D-Arg-L-Tyr-D-Ala-L-Phe-D-Leu)-isomer;enkephalin-Leu, Ala(2)-Arg(6)-, (D-Arg-L-Tyr-D-Ala-L-Phe-L-Leu)-isomer;enkephalin-Leu, Ala(2)-Arg(6)-, (L-Arg-L-Tyr-D-Ala-L-Phe-D-Leu)-isomer;enkephalin-Leu, alanyl(2)-arginine(6)-;Leu-enkephalin, Ala(2)-Arg(6)-;leucine-enkephalin, Ala(2)-Arg(6)-;tageflar;Tyr-Ala-Gly-Phe-Leu-Arg;tyrosyl-alanyl-glycyl-phenylalanyl--leucyl-arginine

Chemical Property of Dalargin

Chemical Property:

• Boiling Point: °Cat760mmHg
• PKA: 3.34±0.10(Predicted)
• Flash Point: °C
• PSA: 308.40000
• Density: 1.36g/cm³
• LogP: 5.06670
• XLogP3: -2.5
• Hydrogen Bond Donor Count: 10
• Hydrogen Bond Acceptor Count: 10
• Rotatable Bond Count: 21
• Exact Mass: 725.38605962
• Heavy Atom Count: 52
• Complexity: 1210

Purity/Quality:

99% ^*data from raw suppliers

Enkephalin-Arg [D-Ala2]-Leu ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC(C)CC(C(=O)NC(CCCN=C(N)N)C(=O)O)NC(=O)C(CC1=CC=CC=C1)NC(=O)CNC(=O)C(C)NC(=O)C(CC2=CC=C(C=C2)O)N
• Isomeric SMILES: C[C@H](C(=O)NCC(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCN=C(N)N)C(=O)O)NC(=O)[C@H](CC2=CC=C(C=C2)O)N

Technology Process of Dalargin

There total 10 articles about Dalargin 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:

Boc2-Tyr-Ala-Gly-Phe-Leu-Arg → Dalargin (81733-80-4,82320-96-5,82507-32-2,108203-21-0,108524-90-9,108905-01-7,108905-02-8,81733-79-1)

Guidance literature:

With trifluoroacetic acid; for 1h; Cooling with ice;

Reference yield:

LR (26607-15-8,38062-60-1,93220-84-9) → Dalargin (81733-80-4,82320-96-5,82507-32-2,108203-21-0,108524-90-9,108905-01-7,108905-02-8,81733-79-1)

Guidance literature:

Multi-step reaction with 4 steps

1.1: N,N-dimethyl-formamide / 24 h

2.1: palladium on activated charcoal; hydrogen / water; ethanol / 43 °C

3.1: N,N-dimethyl-formamide / 2 h

3.2: 2 h

4.1: trifluoroacetic acid / 1 h / Cooling with ice

With palladium on activated charcoal; hydrogen; trifluoroacetic acid; In ethanol; water; N,N-dimethyl-formamide;

Reference yield:

Z-Phe-Leu-Arg → Dalargin (81733-80-4,82320-96-5,82507-32-2,108203-21-0,108524-90-9,108905-01-7,108905-02-8,81733-79-1)

Guidance literature:

Multi-step reaction with 3 steps

1.1: palladium on activated charcoal; hydrogen / water; ethanol / 43 °C

2.1: N,N-dimethyl-formamide / 2 h

2.2: 2 h

3.1: trifluoroacetic acid / 1 h / Cooling with ice

With palladium on activated charcoal; hydrogen; trifluoroacetic acid; In ethanol; water; N,N-dimethyl-formamide;

upstream raw materials:

LR

N-(tert-butoxycarbonyl)-D-alanylglycine benzyl ester

H-Ala-Gly(OBzl)

Tert-butyloxycarbonyl-O-tert-butyloxycarbonyl-L-tyrosyl-D-alanyl-glycine p-nitrophenyl ester