Nagarajan, Kuppuswamy; Talwalker, Purnachard K.; Goud, A. Nagana, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 1113 - 1123
A new method for the synthesis of N-substituted 2-(4-oxo-4,5,6,7-tetrahydroindol-3-yl)acetic acids was developed, Alkylation of cyclic 1,3-diketones with 3,5,5,5-tetrachloropentan-2-one affords 1,4-diketones, which undergo cyclization with different primary amines into N-substituted 3-(2,2,2-trichloroethyl)-4,5,6,7-tetrahydroindol-4-ones. Acid hydrolysis of the latter gives the corresponding indol-3-ylacetic acids. The structures of the compounds obtained were confirmed by H-1 and C-13 NMR data.
NAGARAJAN, K.;TALWALKER, P. K.;NAGANA, GOUD A.;SHAH, R. K.;SHENOY, S. J., ARZNEIM.-FORSCH., 39,(1989) N, C. 548-550
作者:NAGARAJAN, K.、TALWALKER, P. K.、NAGANA, GOUD A.、SHAH, R. K.、SHENOY, S. J.
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NAGARAJAN, KUPPUSWAMY;TALWALKER, PURNACHAND K.;GOUD, A. NAGANA;SHAH, RASH+, INDIAN J. CHEM. B, 27B,(1988) N2, C. 1113-1123
作者:NAGARAJAN, KUPPUSWAMY、TALWALKER, PURNACHAND K.、GOUD, A. NAGANA、SHAH, RASH+
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Crystal and Molecular Structure of Synthetic Antidiabetic Compound: Derivatives of Tetrahydro Indoles-(1-N-Butyl-2,6,6′-Trimethyl-4-Oxo-4,5,6,7-Tetrahydro-3 Indole Acetic Acid) and Modeling Studies
The crystal and molecular structure of (1-n-butyl-2,6,6'-trimethyl-4-oxo-4,5,6,7 - tetrahydro - 3 indole acetic acid) with desirable anti hyperglycemic properties is reported. The title compound crystallises in orthorhombic space group Pbca with z = 8. The unit cell dimensions are a=15.698(13)Angstrom, b=11.639(2)Angstrom. c = 18.506(3)Angstrom. V = 3381.2(29)Angstrom (3), Deal = 1.145Mg/m(3). The cyclohexane ring adopts a sofa conformation. The structure is stabilized by C-H---O and O-H---O hydrogen bonds. Molecular modeling studies on this class of compounds and the classical antidiabetic agent tolbutamide reveal a structural basis for the similar biological activity exhibited by two totally structurally unrelated compounds.
Nagarajan, Kuppuswamy; Talwalker, Purnachard K.; Goud, A. Nagana, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 1113 - 1123
作者:Nagarajan, Kuppuswamy、Talwalker, Purnachard K.、Goud, A. Nagana、Shah, Rashmi K.、Shenoy, Sharada J.、Desai, Narasimha D.