Search Results - "VENKATESWARLU, Yenamandra"

Direct Synthesis of Thioethers from Carboxylates and Thiols Catalyzed by FeCl3 by Venkatesham, Kunuru, Bhujanga Rao, Chitturi, Dokuburra, Chanti Babu, Bunce, Richard A, Venkateswarlu, Yenamandra

“…A new and efficient method has been developed for the synthesis of thioethers from carboxylates and thiols. The reaction proceeds via a Fe­(III)-catalyzed…”
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Lanthanum(III) nitrate hexahydrate or p-toluenesulfonic acid catalyzed one-pot synthesis of 4(3 H)-quinazolinones under solvent-free conditions by Narasimhulu, Manchala, Mahesh, Kondempudi Chinni, Reddy, Thummalapally Srikanth, Rajesh, Karuturi, Venkateswarlu, Yenamandra

“…The one-pot synthesis of quinazolinone derivatives from the reaction of anthranilic acid, trialkyl orthoformate and amines in the presence of lanthanum(III)…”
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A Stereoselective Aldol Approach for the Total Syntheses of Two 6-Alkylated 2H-Pyran-2-ones by Rajaram, Singanaboina, Ramesh, Dasari, Ramulu, Udugu, Prabhakar, Peddikotla, Venkateswarlu, Yenamandra

“…A simple and highly efficient stereoselective total synthesis of the 6‐alkylated pyranones…”
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Stereoselective total synthesis of clonostachydiol by Ramulu, Udugu, Ramesh, Dasari, Rajaram, Singanaboina, Reddy, Sudina Purushotham, Venkatesham, Kunuru, Venkateswarlu, Yenamandra

“…A simple and efficient stereoselective synthesis of clonostachydiol was achieved using ethyl (R)-3-hydroxybutanoate 5 and methyl (R)-2-hydroxypropanoate 12 as…”
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Total synthesis of the phytotoxic stagonolides A and B by Prabhakar, Peddikotla, Rajaram, Singanaboina, Reddy, Dorigondla Kumar, Shekar, Vanam, Venkateswarlu, Yenamandra

“…The chemo-enzymatic and covergent synthesis of stagonolide B and the synthesis of stagonolide A, a phytotoxic 10-membered lactone have been achieved starting…”
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Chemical characterization & bioactivity of diketopiperazine derivatives from the mangrove derived Pseudonocardia endophytica by Mangamuri, Usha Kiranmayi, Muvva, Vijayalakshmi, Poda, Sudhakar, Manavathi, Bramanandam, Bhujangarao, Chitturi, Yenamandra, Venkateswarlu

“…Sediment samples from the mangrove ecosystem of Nizampatnam have been analyzed for actinomycetes as an elite source to screen for the formulation and…”
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Total synthesis of aculeatins A and B from d-glucose by Suresh, Vangaru, Jon Paul Selvam, Jondoss, Rajesh, Karuturi, Venkateswarlu, Yenamandra

“…A simple and highly efficient total synthesis of cytotoxic dioxa-dispiroketals aculeatins A and B is disclosed. The key steps include alkynylation of a chiral…”
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Bioactive-guided fractionation of diols from Streptomyces sp. MSL by Madasu, Raja Hima Bindhu, Muvva, Vijayalakshmi, Munaganti, Rajesh Kumar, Dorigondla, Kumar Reddy, Yenamandra, Venkateswarlu

“…An actinomycete strain with a great potential to produce bioactive compounds isolated from a laterite soil was identified as Streptomyces sp. MSL based on 16S…”
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Asymmetric Total Synthesis of Stagonolide G by Ramesh, Dasari, Rajaram, Singanaboina, Prabhakar, Peddikotla, Ramulu, Udugu, Kumar Reddy, Dorigondla, Venkateswarlu, Yenamandra

“…A simple asymmetric total synthesis of stagonolide G (1) is described. Asymmetric dihydroxylation, regioselective epoxide ring opening, and vinyl Grignard…”
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Silica-supported Perchloric Acid Catalyzed One-pot Synthesis of 1,4-Dihydropyridines by Ramesh, Dasari Rajaram, Singanaboina Narasimhulu, Manchala Reddy, Thummalpally Srikanth Mahesh, Kondempudi Chinni Manasa, Gajji Venkateswarlu, Yenamandra

“…An environmentally friendly and highly efficient procedure for the preparation of 1,4-dihydropyridines by the reaction between a,β-unsaturated aldehydes,…”
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Anti-HIV Active Petrosins from the Marine Sponge Petrosia similis by Goud, Thirumani Venkateshwar, Reddy, Natala Srinivasa, Swamy, Navath Raghavendra, Ram, Tejomoortula Siva, Venkateswarlu, Yenamandra

“…A marine sponge Petrosia similis afforded two compounds which belongs to bis-quinolizidine alkaloids namely, petrosin (1) and petrosin-A (2), respectively…”
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New acylated iridoid glucosides from Vitex altissima by Sridhar, C, Subbaraju, G.V, Venkateswarlu, Y, Venugopal, R.T

“…Six new iridoid glucosides, 6'-O-trans-feruloylnegundoside (1), 6'-O-trans-caffeoylnegundoside (2), 2'-O-p-hydroxybenzoyl-6'-O-trans-caffeoylgardoside (3),…”
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Chemical Examination of the Sponge Phycopsis sp by Kondempudi, Chinni Mahesh, Singanaboina, Rajaram, Manchala, Narasimhulu, Gunda, Venu Gopal, Janapala, Venkateswara Rao, Yenamandra, Venkateswarlu

“…Two new compounds 7α,8α-epoxy theonellin isothiocyanate (1) and 5α,8α-epidioxyergosta-6Z,22Z,25-trien-3β-ol (2) along with two known compounds, theonellin…”
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Two New Macrocyclic Diaryl Ether Heptanoids from Boswellia ovalifoliolata by Reddy, Vanimireddy Lakshmi Niranjan, Ravinder, Kodela, Srinivasulu, Masuna, Goud, Thirumani Venkateshwar, Reddy, Samala Malla, Srujankumar, Dondapati, Rao, Tadikamalla Prabhakar, Murty, Upadhyayula Suryanarayana, Venkateswarlu, Yenamandra

“…The stems of Boswellia ovalifoliolata BAL. & HENRY (Burseraceae) afforded two new macrocyclic diaryl ether heptanoids, ovalifoliolatin A (1) and B (2) together…”
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Three New Ingol Diterpenes from Euphorbia nivulia: Evaluation of Cytotoxic Activity by Ravikanth, Veluri, Reddy, Vanimireddy Lakshmi Niranjan, Reddy, Adelli Vijender, Ravinder, Kodela, Rao, Tadikamalla Prabhakar, Ram, Tejomoorty Siva, Kumar, Kondapi Anand, Vamanarao, Diwan Prakesh, Venkateswarlu, Yenamandra

“…The latex of Euphorbia nivulia afforded three new ingol diterpenes, 3-acetyl-8-methoxyl-7-angolyl-12-hydroxylingol (7), 3,12-diacetyl-7-hydroxy-8-methoxylingol…”
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Anti-HIV Active Petrosins from the Marine Sponge Petrosia similis1 by Venkateshwar Goud, Thirumani, Srinivasa Reddy, Natala, Raghavendra Swamy, Navath, Siva Ram, Tejomoortula, Venkateswarlu, Yenamandra

“…A marine sponge Petrosia similis afforded two compounds which belongs to bis-quinolizidine alkaloids namely, petrosin (1) and petrosin-A (2), respectively…”
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Purification and biological evaluation of the metabolites produced by Streptomyces sp. TK-VL_333 by Kavitha, Alapati, Prabhakar, Peddikotla, Vijayalakshmi, Muvva, Venkateswarlu, Yenamandra

“…An Actinobacterium strain isolated from laterite soils of the Guntur region was identified as Streptomyces sp. TK-VL_333 by 16S rRNA analysis. Cultural,…”
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Two New Bromotyrosine-Derived Metabolites from the Sponge Psammaplysilla purpurea by Goud, Thirumani Venkateshwar, Srinivasulu, Masuna, Reddy, Vanimireddy Lakshmi Niranjan, Reddy, Adelli Vijender, Rao, Tadikamalla Prabhakar, Kumar, Dondapati Srujan, Murty, Upadhyayula Suryanaramyana, Venkateswarlu, Yenamandra

“…Two new bromotyrosine-derived metabolites (1, 2) have been isolated along with the known compounds 3,5-dibromo-4-methoxyphenylacetonitrile,…”
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Antioxidant Properties of Isolated Compounds from Banana Rhizome by Kandasamy, Saravanan, Baggu, Chinnababu, Javagal, Manjunatha Rangaswamy, Lingamallu, Jaganmohan Rao, Yenamandra, Venkateswarlu, Aradhya, Somaradhya Mallikarjuna

“…In this study, we attempted to explore banana rhizome (BR) as a source of natural bioactive compounds. Dried BR powder was subjected to sequential extraction…”
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Retro‐Claisen Condensation with Fe III as Catalyst under Solvent‐Free Conditions by Rao, Chitturi Bhujanga, Rao, Dasireddi Chandra, Babu, Dokuburra Chanti, Venkateswarlu, Yenamandra

“…An iron(III) salt catalyzed retro‐Claisen condensation between an alcohol and a 1,3‐diketone was investigated. The mechanism involves the formation of a…”
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