DL-Tryptophan methyl ester hydrochloride (BAT-003610)

Category
DL-Amino Acids
Catalog number
BAT-003610
CAS number
5619-09-0
Molecular Formula
C12H14N2O2·HCl
Molecular Weight
254.70
Application
Amino acid derivative that may be used to prepare the corresponding amino acid amide L-Tryptophanamide Hydrochloride (Cat. #T89550).
DL-Tryptophan methyl ester hydrochloride
Synonyms
DL-Trp-OMe HCl; Methyl 2-amino-3-(1H-indol-3-yl)propanoate Hydrochloride; DL-Tryptophan methyl ester HCl
Appearance
White to off-white powder
Purity
≥ 98% (HPLC)
Density
1.245g/cm3
Melting Point
214-219 °C
Boiling Point
390.6ºC at 760 mmHg
Storage
Store at 2-8°C
Application
Amino acid derivative that may be used to prepare the corresponding amino acid amide L-Tryptophanamide Hydrochloride (Cat. #T89550).
InChI
InChI=1S/C12H14N2O2.ClH/c1-16-12(15)10(13)6-8-7-14-11-5-3-2-4-9(8)11;/h2-5,7,10,14H,6,13H2,1H3;1H
InChI Key
XNFNGGQRDXFYMM-UHFFFAOYSA-N
Canonical SMILES
COC(=O)C(CC1=CNC2=CC=CC=C21)N.Cl
1.Intravaginal administration of metformin hydrochloride loaded cationic niosomes amalgamated with thermosensitive gel for the treatment of polycystic ovary syndrome: In vitro and in vivo studies.
Saini N1, Sodhi RK2, Bajaj L1, Pandey RS3, Jain UK1, Katare OP4, Madan J5. Colloids Surf B Biointerfaces. 2016 Apr 8;144:161-169. doi: 10.1016/j.colsurfb.2016.04.016. [Epub ahead of print]
BACKGROUND AND OBJECTIVE: Metformin hydrochloride (MTF-HCl) is extensively recommended by physicians for the treatment of polycystic ovary syndrome (PCOS). Mechanistically, MTF-HCl activates AMP-dependent kinase-α (AMPK-α) pathway to decrease the glucose production, enhances fatty acid oxidation and elevates the uptake of glucose in tissues. However, despite favourable physicochemical properties, oral administration of MTF-HCl is associated with impaired bioavailability (50-60%), lactic-acidosis and frequent dosing (500mg 2-3 times a day) in PCOS that ultimately influence the patient compliance. Therefore, in present investigation, MTF-HCl loaded unmodified and cationic small unilamellar niosomes were separately amalgamated with thermosensitive gel (MTF-HCl-SUNs-Gel and MTF-HCl-C-SUNs-Gel) for the treatment of PCOS through vaginal route of administration.
2.A hydrometallurgical process for recovering total metal values from waste monolithic ceramic capacitors.
Prabaharan G1, Barik SP2, Kumar B1. Waste Manag. 2016 Apr 12. pii: S0956-053X(16)30173-8. doi: 10.1016/j.wasman.2016.04.010. [Epub ahead of print]
A hydrometallurgical process for recovering the total metal values from waste monolithic ceramic capacitors was investigated. The process parameters such as time, temperature, acid concentration, hydrogen peroxide concentration and other reagents (amount of zinc dust and sodium formate) were optimized. Base metals such as Ba, Ti, Sn, Cu and Ni are leached out in two stages using HCl in stage 1 and HCl with H2O2 in stage 2. More than 99% of leaching efficiency for base metals (Cu, Ni, Ba, Ti and Sn) was achieved. Precious metals such as Au and Pd are leached out using aquaregia and nitric acid was used for the leaching of Ag. Base metals (Ba, Ti, Sn, Cu and Ni) are recovered by selective precipitation using H2SO4 and NaOH solution. In case of precious metals, Au and Pd from the leach solution were precipitated out using sodium metabisulphite and sodium formate, respectively. Sodium chloride was used for the precipitation of Ag from leach solution.
3.New antiviral targets for innovative treatment concepts for hepatitis B virus and hepatitis delta virus.
Durantel D1, Zoulim F2. J Hepatol. 2016 Apr;64(1S):S117-S131. doi: 10.1016/j.jhep.2016.02.016.
Current therapies of chronic hepatitis B (CHB) remain limited to pegylated-interferon-alpha (PegIFN-α) or any of the five approved nucleos(t)ide analogues (NUC) treatments. While viral suppression can be achieved in the majority of patients with the high-barrier-to-resistance new-generation of NUC, i.e. entecavir and tenofovir, HBsAg loss is achieved by PegIFN-α and/or NUC in only 10% of patients, after a 5-year follow-up. Attempts to improve the response by administering two different NUC or a combination of NUC and PegIFN-α have not provided a dramatic increase in the rate of functional cure. Because of this and the need of long-term NUC administration, there is a renewed interest regarding the understanding of various steps of the HBV replication cycle, as well as specific virus-host cell interactions, in order to define new targets and develop new antiviral drugs. This includes a direct inhibition of viral replication with entry inhibitors, drugs targeting cccDNA, siRNA targeting viral transcripts, capsid assembly modulators, and approaches targeting the secretion of viral envelope proteins.
4.Fate and transport with material response characterization of green sorption media for copper removal via desorption process.
Chang NB1, Houmann C2, Lin KS3, Wanielista M2. Chemosphere. 2016 Apr 12;154:444-453. doi: 10.1016/j.chemosphere.2016.03.130. [Epub ahead of print]
Multiple adsorption and desorption cycles are required to achieve the reliable operation of copper removal and recovery. A green sorption media mixture composed of recycled tire chunk, expanded clay aggregate, and coconut coir was evaluated in this study for its desorptive characteristics as a companion study of the corresponding adsorption process in an earlier publication. We conducted a screening of potential desorbing agents, batch desorption equilibrium and kinetic studies, and batch tests through 3 adsorption/desorption cycles. The desorbing agent screening revealed that hydrochloric acid has good potential for copper desorption. Equilibrium data fit the Freundlich isotherm, whereas kinetic data had high correlation with the Lagergren pseudo second-order model and revealed a rapid desorption reaction. Batch equilibrium data over 3 adsorption/desorption cycles showed that the coconut coir and media mixture were the most resilient, demonstrating they could be used through 3 or more adsorption/desorption cycles.
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