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Browsing by Author Freire, Raimundo

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Showing results 26 to 45 of 89
Issue DateTitleAuthor(s)Type
9-Feb-2005Hydrogen atom transfer methodology for the synthesis of C-22, C-23, and C-25 stereoisomers of cephalostatin north 1 side chain from spirostan sapogeninsBetancor, Carmen; Freire, Raimundo; Pérez-Martín, Inés; Prangé, Thierry; Suárez, ErnestoArtículo
1991Hypervalent organoiodine compounds: radical fragmentation of oxabicyclic hemiacetals. Convenient synthesis of medium-sized and spiro lactonesArencibia, Teresa; Freire, Raimundo; Perales, Áurea; Rodríguez Morales, María S.; Suárez, ErnestoArtículo
Apr-1975Iguesterin, a new quinonoid triterpene from Catha cassinoidesGonzález, Antonio G.; Freire, Raimundo; Francisco, Cosme G.; Salazar, José A.; Hernández, Rosendo; Suárez, ErnestoArtículo
1974Iguesterina, una nueva hidroxi-metilen-quinona bis-nortditerpenica de la "Catha cassinoides" W.B.González, Antonio G.; Freire, Raimundo; Francisco, Cosme G.; Salazar, José A.; Hernández, Rosendo; Suárez, ErnestoArtículo
4-May-2002Intramolecular 1,5- versus 1,6-hydrogen abstraction reaction promoted by alkoxy radicals in carbohydrate modelsFrancisco, Cosme G.; Freire, Raimundo; Herrera, Antonio J.; Pérez-Martín, Inés; Suárez, ErnestoArtículo
12-Jun-2007Intramolecular 1,5- versus 1,6-hydrogen abstraction reaction promoted by alkoxyl radicals in pyranose and furanose modelsFrancisco, Cosme G.; Freire, Raimundo; Herrera, Antonio J.; Pérez-Martín, Inés; Suárez, ErnestoArtículo
1988Intramolecular hydrogen abstraction. The use of organoselenium reagents for the generation of alkoxy radicalsDorta, Rosa L.; Francisco, Cosme G.; Freire, Raimundo; Suárez, ErnestoArtículo
Feb-1986Iodosobenzene diacetate, an efficient reagent for the oxidative decarboxylation of carboxylic acidsConcepción, José I.; Francisco, Cosme G.; Freire, Raimundo; Hernández, Rosendo; Salazar, José A.; Suárez, ErnestoArtículo
1976Lindleyin, a new phenolic gallylglucoside from Aeonium lindleyiGonzález, Antonio G.; Freire, Raimundo; Francisco, Cosme G.; Salazar, José A.; Hernández, Rosendo; Suárez, ErnestoArtículo
Mar-1983Long-acting contraceptive agents: Esters of norethisterone with alkoxy- and halogeno-substituted carboxylic acidsShafiee, A.; Vossoghi, M.; Francisco, Cosme G.; Freire, Raimundo; Hernández, Rosendo; Salazar, José A.; Suárez, Ernesto; Sotheeswaran, S.Artículo
Mar-1983Long-acting contraceptive agents: Levonorgestrel esters of unsaturated acidsFrancisco, Cosme G.; Freire, Raimundo; Hernández, Rosendo; Salazar, José A.; Suárez, Ernesto; Ngiam, T.L.; Leung, S.L.; Go, M.L.; Jimeno, Oswaldo; Noguez, José A.; Costa H., A.; Tarpanov, V.; Boshkova-Ljapova, M.; Milenkov, B.; Stoilova, V.; Vlahov, J.; Snatzke, G.; Wan, A.S.C.; García de la Mora, Gustavo A.; Vlahov, R.Artículo
Mar-1983Long-acting contraceptive agents: norethisterone esters of arylcarboxylic acidsWan, A. S. C.; Ngiam, T. L.; Leung, S. L.; Go, M. L.; Heng, P. W. S.; Natarajan, P. N.; Shafiee, A.; Vossoghi, M.; Savabi, F.; Francisco, Cosme G.; Freire, Raimundo; Hernández, Rosendo; Salazar, José A.; Suárez, Ernesto; García de la Mora, Gustavo A.; Grillasca R., Y.; Jimeno, OswaldoArtículo
Mar-1983Long-acting contraceptive agents: Norethisterone esters of monoalkenyl and monoalkynyl acidsFrancisco, Cosme G.; Freire, Raimundo; Hernández, Rosendo; Salazar, José A.; Suárez, Ernesto; Noguez, José A.; Acosta, Alejandrina; Jimeno, Oswaldo; García de la Mora, Gustavo A.Artículo
Mar-1983Long-acting contraceptive agents: Norethisterone esters of polyunsaturated acidsFrancisco, Cosme G.; Freire, Raimundo; Hernández, Rosendo; Salazar, José A.; Suárez, Ernesto; Vlahov, R.; Tarpanov, V.; Boshkova-Ljapova, M.; Milenkov, B.; Stoilova, V.; Vlahov, J.; Snatzke, G.; Kielczewski, M.; Gawronski, J.; Strekowki, L.Artículo
Jan-1990Long-acting contraceptive agents: testosterone esters of unsaturated acidsFrancisco, Cosme G.; Freire, Raimundo; Gawronski, J.; Hernández, Rosendo; Kielczewski, M.; Salazar, José A.; Savabi, F.; Shafiee, A.; Strekowski, L.; Suárez, ErnestoArtículo
1973New sources of steroid sapogenin - XVIII: Four new steroid sapogenins from Semele androgynaGonzález, Antonio G.; Freire, Raimundo; Salazar, José A.; Hernández, Rosendo; Suárez, ErnestoArtículo
1970New sources of steroid sapogenins—VIII: Sceptrumgenin and isoplexigenin A, B, C and D from Isoplexis sceptrumGonzález, Antonio G.; Freire, Raimundo; Suárez, ErnestoArtículo
1972New sources of steroid sapogenins—XIV: 25S-ruscogenin and sansevierigenin, two new spirostan sapogenins from Sansevieria trifasciataGonzález, Antonio G.; Freire, Raimundo; García-Estrada, M. G.; Salazar, José A.; Suárez, ErnestoArtículo
1973New sources of steroid sapogenins—XIX: 20S-hydroxyvespertilin, a new steroid lactone from Solanum vespertilioGonzález, Antonio G.; Freire, Raimundo; Francisco, Cosme G.; Salazar, José A.; Suárez, ErnestoArtículo
Jul-1972Nuevas fuentes de sapogeninas esteroidales XIII. Funchaligenina, nueva sapogenina esteroidal de la Isoplexis spectrum (Linn.) SteudelGonzález, Antonio G.; Freire, Raimundo; Salazar, José A.; Suárez, ErnestoArtículo

Showing results 26 to 45 of 89