Synthesis and Quantification of 2-(Diethylamino)-N-(2-methylphenyl)acetamide Nitrate
摘要:
A procedure for the synthesis of 2-(diethylamino)-N-(2-methylphenyl) acetamide nitrate (monomecaine) exhibiting a pronounced antiarrhythmic activity has been optimized. A procedure for its identification and quality control of the drug substance by HPLC has been developed, and the limit of detection of o-toluidine impurity therein has been estimated at 0.02%. Procedures for HLPC and extraction-titration quantification of monomekain in the drug substance have been proposed and validated. The obtained relative standard deviation (RSD) indicates good specificity, linearity, and precision of the developed procedures.
Synthesis and Quantification of 2-(Diethylamino)-N-(2-methylphenyl)acetamide Nitrate
摘要:
A procedure for the synthesis of 2-(diethylamino)-N-(2-methylphenyl) acetamide nitrate (monomecaine) exhibiting a pronounced antiarrhythmic activity has been optimized. A procedure for its identification and quality control of the drug substance by HPLC has been developed, and the limit of detection of o-toluidine impurity therein has been estimated at 0.02%. Procedures for HLPC and extraction-titration quantification of monomekain in the drug substance have been proposed and validated. The obtained relative standard deviation (RSD) indicates good specificity, linearity, and precision of the developed procedures.
Synthesis and antispasmodic activity of lidocaine derivatives endowed with reduced local anesthetic action
作者:Jorge C.S. Costa、Josiane S. Neves、Marcus V.N. de Souza、Rodrigo A. Siqueira、Nelilma C. Romeiro、Nubia Boechat、Patrícia M.R.e Silva、Marco A. Martins
DOI:10.1016/j.bmcl.2007.11.122
日期:2008.2
relationship (SAR) study focused on chemical modifications of the structure of the local anesthetic lidocaine, and indicated analogues having reduced anesthetic potency, but with superior potency relative to the prototype in preventing anaphylactic or histamine-evoked ileum contraction. From the SAR analysis, 2-(diethylamino)-N-(trifluoromethyl-phenyl) and 2-(diethylamino)-N-(dimethyl-phenyl) acetamides were
Erdtman; Loefgren, Svensk Kemisk Tidskrift, 1937, vol. 49, p. 163,170,171
作者:Erdtman、Loefgren
DOI:——
日期:——
OCT3 transporters expressed in blood brain barrier cells
申请人:Zerangue Noa
公开号:US20070054323A1
公开(公告)日:2007-03-08
OCT3 is consistently expressed at high levels in brain microvessel endothelial cells. Disclosed herein are assays for determining whether a test material/molecule is a substrate for, and/or is actively transported by, the OCT3 transporter, and therefore a candidate substrate for crossing the blood brain barrier. The assays are useful in screening for therapeutic, cytotoxic or imaging compounds used in the treatment or diagnosis of neurological diseases.