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Number of items: 66.

Bhandary, K. K. ; Kartha, G. ; Kopple, K. D. (1986) Structure and conformation of cyclo(-L-phenylalanyl-L-prolyl-D-alanyl-), form II of a synthetic cyclic hexapeptide Acta Crystallographica Section C: Crystal Structure Communications, 42 (10). pp. 1430-1433. ISSN 0108-2701

Varughese, K. I. ; Aimoto, S. ; Kartha, G. (1986) Calcium binding cyclic hexapeptide: Crystal structure of cyclo-(L-prolyl-glycyl)3 calcium complex International Journal of Peptide and Protein Research, 27 (2). pp. 118-122. ISSN 0367-8377

Kartha, G. ; Aimoto, S. ; Varughese, K. I. (1986) Crystal and molecular structure of cyclo(L-prolyl-glycyl)3: a cyclic hexapeptide with a cis peptide bond International Journal of Peptide and Protein Research, 27 (2). pp. 112-117. ISSN 0367-8377

Joshi, Balawant S. ; Gawad, Dilip H. ; Pelletier, S. William ; Kartha, Gopinath ; Bhandary, Krishna (1986) Isolation and structure (X-ray analysis) of ent-norsecurinine, an alkaloid from Phyllanthus niruri Journal of Natural Products, 49 (4). pp. 614-620. ISSN 0163-3864

Go, K. ; Kartha, G. ; Viswanathan, N. (1985) Structure and conformation of two diastereomers of (±)-1-(2,3-dichlorophenyl)-3,5,6,7-tetrahydro-3-hydroxy-3,6,6-trimethyl-1H-indole-2,4-dione, C17H17Cl2NO3 Acta Crystallographica Section C: Crystal Structure Communications, 41 (3). pp. 417-419. ISSN 0108-2701

Kopple, Kenneth D. ; Kartha, Gopinath ; Bhandary, Krishna K. ; Romanowska, Krystyna (1985) Conformations of cyclic octapeptides. 2. Crystal structure of cyclo(D-Ala-Gly-Pro-D-Phe)2. Solvent exposure of backbone protons in crystal and solution conformations Journal of the American Chemical Society, 107 (17). pp. 4893-4897. ISSN 0002-7863

Go, K. ; Kartha, G. (1984) Structure and conformation of sulfinpyrazone, C23H20N2O3S Acta Crystallographica Section C: Crystal Structure Communications, 40 (11). pp. 1869-1871. ISSN 0108-2701

Go, K. ; Kartha, G. (1984) Structure of oleandrigenin monohydrate, C25H37O6.H2O Acta Crystallographica Section C: Crystal Structure Communications, 40 (11). pp. 1866-1869. ISSN 0108-2701

Kartha, Gopinath ; Bhandary, K. Krishna ; Kopple, Kenneth D. ; Go, Anita ; Zhu, Peng Peng (1984) Synthesis and conformation studies by X-ray crystallography and nuclear magnetic resonance of cyclo(L-Phe-L-Pro-D-Ala)2 Journal of the American Chemical Society, 106 (13). pp. 3844-3850. ISSN 0002-7863

Joshi, Balawant S. ; Gawad, Dilip H. ; William Pelletier, S. ; Kartha, Gopinath ; Bhandary, Krishna (1984) The structure of radermachol, an unusual pigment from Radermachera xylocarpa K. Schum Tetrahedron Letters, 25 (51). pp. 5847-5850. ISSN 0040-4039

Go, K. ; Kartha, G. (1983) Structure of ouabagenin methanol solvate, C23H34O8.CH3OH Acta Crystallographica Section C: Crystal Structure Communications, 39 (3). pp. 376-378. ISSN 0108-2701

Nagarajan, K. ; Nair, M. D. ; Shenoy, S. J. ; Kartha, G. (1983) Addition products of dimethyl acetylenedicarboxylate to thioureas- Studies on 2-(p-bromophenyl) imino-3-methyl-5-carbomethoxymethylidenethiazolidin-(4)-one Proceedings of the Indian Academy of Sciences - Chemical Sciences, 92 (1). pp. 99-106. ISSN 0253-4134

Kartha, Gopinath ; Krishnamurthy, Kotra V. (1983) Crystal and molecular structure of pyrrolidine dithio carbamate cobalt (III) chelate Proceedings of the Indian Academy of Sciences - Chemical Sciences, 92 (4-5). pp. 437-441. ISSN 0253-4134

Neeman, Moshe ; Kartha, Gopinath ; Go, Kuantee ; Santodonato, Joseph P. ; Dodson-Simmons, Onda (1983) Modified steroid hormones. 7. 4-Fluoro-17.beta.-estradiol: carbon-13 nuclear magnetic resonance, crystal and molecular structure, and biological activity Journal of Medicinal Chemistry, 26 (4). pp. 465-469. ISSN 0022-2623

Rajappa, Srinivasachari ; Advani, Bhagwan G. ; Kartha, Gopinath ; Hartloff, Holly (1983) A novel ring-opening of a 2-alkyl-5-imino-4-nitro-2,5-dihydroisothiazole by cyanide ion Journal of the Chemical Society, Perkin Transactions 1 . pp. 1953-1955. ISSN 0300-922X

Go, K. ; Kartha, G. ; Neeman, M. (1982) Structure of 4-fluoro-1,3,5(10)-estratriene-3,17β-diol-hemimethanol Acta Crystallographica Section B: Structural Science, 38 (12). pp. 3142-3144. ISSN 0108-7681

Varughese, K. I. ; Kartha, G. (1982) Hydrogen-bonding interactions between a cis peptide and a carboxyl group: structure of the 1:2 2,5-piperazinedione-salicyclic acid complex Acta Crystallographica Section B: Structural Science, 38 (1). pp. 301-302. ISSN 0108-7681

Ravindra Acharya, K. ; Kuchela, K. N. ; Kartha, Gopinath (1982) Crystal structure of sulfamerazine Journal of Chemical Crystallography, 12 (4). pp. 369-376. ISSN 1074-1542

Swaminathan, V. ; Smith, Janet L. ; Sundaralingam, M. ; Coutsogeorgopoulos, C. ; Kartha, G. (1981) Crystal and molecular structure of the antiobiotic blasticidin S hydrochloride pentahydrate Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 655 (3). pp. 335-341. ISSN 0005-2787

Kartha, G. ; Varughese, K. I. ; Lu, C. T. (1981) Structure of the 1:2 complex of 2,5-piperazinedione and formic acid Acta Crystallographica Section B: Structural Science, 37 (9). pp. 1798-1800. ISSN 0108-7681

Varughese, K. I. ; Lu, C. T. ; Kartha, G. (1981) Crystal structure and conformation of cyclo-L-cystine International Journal of Peptide and Protein Research, 18 (1). pp. 88-102. ISSN 0367-8377

Kartha, G. ; Fantozzi, T. D. ; Go, Kuantee ; Nagarajan, K. (1981) Crystal and molecular structure of 2-bromo-5,6-dihydro-6-methyl-4H,8H-pyrido [3,2,1-de]phenanthridin-8-one Journal of Chemical Crystallography, 11 (1-2). pp. 27-32. ISSN 1074-1542

Varughese, Kottayil I. ; Kartha, Gopinath ; Kopple, Kenneth D. (1981) Crystal structure and conformation of cyclo-(glycyl-D-leucyl-L-leucyl)2 Journal of the American Chemical Society, 103 (12). pp. 3310-3313. ISSN 0002-7863

Go, K. ; Kartha, G. (1980) Structure of Gitoxin Acta Crystallographica Section B: Structural Science, 36 (12). pp. 3034-3040. ISSN 0108-7681

Go, K. ; Kartha, G. ; Chen, J. P. (1980) Structure of Digoxin Acta Crystallographica Section B: Structural Science, 36 (8). pp. 1811-1819. ISSN 0108-7681

Bello, Jake ; Iijima, Herbert ; Kartha, Gopinath (1979) A new arylating agent, 2-carboxy-4,6-dinitrochlorobenzene: reaction with model compounds and bovine pancreatic ribonuclease International Journal of Peptide and Protein Research, 14 (3). pp. 199-212. ISSN 0367-8377

Go, Kuan-tee ; kartha, Gopinath ; Nagarajan, K. (1977) 10-Alkyl- & 10-ammoakyl-2,2'-bis(trifluoro-methyl)-7,10'-biphenothiazines-revision of structure of dimeric phaenothiazines from the alkyiation of 2-trifluoromethylphenothiazine Indian Journal of Chemistry - Section B: Organic and Medicinal Chemistry, 15 . pp. 92-93. ISSN 0376-4699

Go, K. ; Kartha, G. ; Nagarajan, K. (1977) 10-methyl-2,2'-bis(trifluoromethyl)-7,10'-biphenothiazine Acta Crystallographica - Section B: Structural Crystallography & Crystal Chemistry, 33 (12). pp. 3894-3897. ISSN 0567-7408

Kartha, G. ; Go, Kuantee ; Lu, C. T. ; Nagarajan, K. (1977) Crystal and molecular structure of 1-(p-bromobenzoyl)-2-methyl-1,2,3,4-tetrahydroquinoline Journal of Chemical Crystallography, 7 (5). pp. 211-218. ISSN 1074-1542

Das, Tushar Kanti ; Dutta, Phanindra Chandra ; Kartha, Gopinath ; Bernassau, J. M. (1977) Synthetic studies on terpenoids. Part 19. Synthesis of 3β,10α,14β-trimethyl-1βH,11βH-tricyclo[9.3.0.0]tetradec-6-en-5-one, a tricyclic ketone related to the ophiobolins Journal of the Chemical Society Perkin Transactions 1 . pp. 1287-1295. ISSN 1472-7781

Kartha, Gopinath ; Go, Kuan Tee (1976) Structure and absolute configuration of enhydrin bromohydrin Journal of Chemical Crystallography, 6 (1). pp. 31-42. ISSN 1074-1542

Kartha, G. ; Ambady, G. (1975) The crystal structure and molecular conformation of cyclo-L-prolyl-L-prolyl-L-hydroxyproline, a cyclic tripeptide Acta Crystallographica Section B, 31 (8). pp. 2035-2039. ISSN 0108-7681

Kartha, G. ; Ashida, T. ; Kakudo, M. (1974) The crystal structure of t-amyloxycarbonyl-L-prolyl-L-prolyl-L-proline Acta Crystallographica Section B: Structural Science, 30 (7). pp. 1861-1866. ISSN 0108-7681

Govindachari, Tuticorin R. ; Nagarajan, Kuppuswamy ; Parthasarathy, Papagudi C. ; Rajagopalan, Tuticorin G. ; Desai, Haridutt K. ; Kartha, Gopinath ; Chen, Sow-mei Lai ; Nakanishi, Koji (1974) Absolute stereochemistry of ancistrocladine and ancistrocladinine Journal of the Chemical Society, Perkin Transactions 1, 1974 . pp. 1413-1417. ISSN 0300-922X

Joshi, Balawant S. ; Kamat, Venkatesh N. ; Govindachari, Tuticorin R. ; Ramachandra Pai, B. ; Kartha, Gopinath ; Go, Kuan Tee (1974) Structure of wightionolide: chemical and X-ray analysis Perkin Transactions 1, 1974 . pp. 2517-2523. ISSN 0300-922X

Korytnyk, W. ; Ahrens, H. ; Angelino, N. ; Kartha, G. (1973) Chemistry and biology of vitamin B6. 34. Interaction of pyridoxalla with cyanide Journal of Organic Chemistry, 38 (21). pp. 3793-3797. ISSN 0022-3263

Nagarajan, K. ; Nair, M. D. ; Ranga Rao, V. ; Venkateswarlu, A. ; Kartha, G. (1973) Conformation of the methyl group and tetrahydropyridine ring in N-acyltetrahydroquinaldine derivatives Tetrahedron, 29 (17). pp. 2571-2573. ISSN 0040-4020

Ambady, Gopal ; Kartha, Gopinath (1973) Crystal structure and absolute configuration of yohimbine hydrochloride, C21H27ClN2O3 Journal of Chemical Crystallography, 3 (1). pp. 37-45. ISSN 1074-1542

Kartha, Gopinath ; Go, K. T. ; Joshi, B. S. (1972) X-ray crystal structure and configuration of enhydrin bromohydrin Journal of the Chemical Society - Series Chemical Communications, 1972 (24). pp. 1327-1328. ISSN 0022-4936

Ambady, G. K. ; Kartha, G. (1968) The crystal and molecular structure of sodium D-tartrate dihydrate Acta Crystallographica Section B: Structural Science, 24 (11). pp. 1540-1547. ISSN 0108-7681

Ohrt, J. M. ; Cooper, A. ; Kartha, Gopinath ; Norton, D. A. (1968) The crystal and molecular structure of 3β,17α-dihydroxy-21-bromo-5α-pregnan-11,20-dione Acta Crystallographica Section B: Structural Science, 24 (6). pp. 824-830. ISSN 0108-7681

Kartha, Gopinath (1968) Picture of proteins by X-ray diffraction Accounts of Chemical Research, 1 (12). pp. 374-381. ISSN 0001-4842

Kartha, G. ; Bello, J. ; Harker, D. (1967) Tertiary structure of ribonuclease Nature, 213 . pp. 862-865. ISSN 0028-0836

Kartha, G. (1965) Combination of multiple isomorphous replacement and anomalous dispersion data for protein structure determination. III. Refinement of heavy atom positions by the least-squares method Acta Crystallographica, 19 (6). pp. 883-885. ISSN 0365-110X

Kartha, G. ; Parthasarathy, R. (1965) Combination of multiple isomorphous replacement and anomalous dispersion data for protein structure determination. I. Determination of heavy-atom positions in protein derivatives Acta Crystallographica, 18 (4). pp. 745-749. ISSN 0365-110X

Kartha, G. ; Parthasarathy, R. (1965) Combination of multiple isomorphous replacement and anomalous dispersion data for protein structure determination. II. Correlation of the heavy-atom positions in different isomorphous protein crystals Acta Crystallographica, 18 (4). pp. 749-753. ISSN 0365-110X

Norton, D. A. ; Kartha, G. ; Lu, C. T. (1964) The crystal and molecular structures of 4-bromoestradiol Acta Crystallographica, 17 (2). pp. 77-82. ISSN 0365-110X

Norton, D. A. ; Kartha, G. ; Lu, C. T. (1963) The crystal and molecular structures of 4-bromoestrone Acta Crystallographica, 16 (2). pp. 89-94. ISSN 0365-110X

Kartha, G. ; Ramachandran, G. N. ; Bhat, H. B. ; Madhavan Nair, P. ; Raghavan, V. K. V. ; Venkataraman, K. (1963) The constitution of morellin Tetrahedron Letters, 4 (7). pp. 459-472. ISSN 0040-4039

Kartha, G. ; Ahmed, F. R. ; Barnes, W. H. (1962) Refinement of the crystal structure of codeine hydrobromide dihydrate, and establishment of the absolute configuration of the codeine molecule Acta Crystallographica, 15 (4). pp. 326-333. ISSN 0365-110X

Kartha, G. ; De Vries, A. (1961) Structure of Asparagine monohydrate Nature, 192 . pp. 862-863. ISSN 0028-0836

Kartha, G. (1961) Isomorphous replacement method in non-centrosymmetric structures Acta Crystallographica, 14 (6). pp. 680-686. ISSN 0365-110X

Kartha, G. ; Ahmed, F. R. ; Barnes, W. H. (1961) The crystal and molecular structure of DL-alphaprodine hydrochloride Acta Crystallographica, 14 (1). pp. 93-94. ISSN 0365-110X

Kartha, G. ; Ahmed, F. R. (1960) Structure-factor calculation with anisotropic thermal parameters Acta Crystallographica, 13 (7). pp. 532-534. ISSN 0365-110X

Kartha, G. ; Ahmed, F. R. ; Barnes, W. H. (1960) The crystal and molecular structure of DL-alphaprodine hydrochloride Acta Crystallographica, 13 (7). pp. 525-531. ISSN 0365-110X

Cochran, W. ; Kartha, G. (1956) Scattering of X-rays by defect structures. II. An extension of the theory Acta Crystallographica, 9 (11). pp. 941-943. ISSN 0365-110X

Cochran, W. ; Kartha, G. (1956) Scattering of X-rays by defect structures. III. The effect of interstitial atoms and vacancies Acta Crystallographica, 9 (11). pp. 944-948. ISSN 0365-110X

Kartha, G. ; Ramachandran, G. N. (1955) Applications of the difference-Patterson technique in structure analysis Acta Crystallographica, 8 (4). pp. 195-199. ISSN 0365-110X

Ramachandran, G. N. ; Kartha, G. (1955) Studies on collagen. I. Structure of the collagen group of proteins Proceedings of the Indian Academy of Sciences, Section A, 42 (5). pp. 215-234. ISSN 0370-0089

Ramachandran, G. N. ; Kartha, G. (1954) Structure of collagen Nature, 174 . pp. 269-270. ISSN 0028-0836

Kartha, G. (1953) A new method of calculating the scale factor in structure analysis Acta Crystallographica, 6 (11-12). pp. 817-820. ISSN 0365-110X

Kartha, Gopinath (1953) Structure of halogenates of the type A (BO3)2·H2O Part II. Barium bromate monohydrate Ba (BrO3)2·H2O Proceedings of the Indian Academy of Sciences, Section A, 38 (1). pp. 1-12. ISSN 0370-0089

Kartha, G. (1952) Structure of barium chlorate monohydrate Ba(ClO3)2.H2O Acta Crystallographica, 5 (6). pp. 845-846. ISSN 0365-110X

Kartha, G. (1952) Correction charts for Lorentz and polarization factors in anti-equi-inclination photographs Acta Crystallographica, 5 (4). pp. 549-550. ISSN 0365-110X

Kartha, Gopinath (1952) Structure of halogenates of the type a (BO3)2·H2O I. Barium chlorate monohydrate. Ba(ClO3)2·H2O Proceedings of the Indian Academy of Sciences, Section A, 36 (6). pp. 501-529. ISSN 0370-0089

Ramachandran, G. N. ; Kartha, Gopinath (1952) X-ray anti-reflections in crystals Proceedings of the Indian Academy of Sciences, Section A, 35 (3). pp. 145-158. ISSN 0370-0089

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