16,17-Seco- and 2,3:16,17-di-Seco-pregnanes from Guarea guidonia
نویسندگان
چکیده
منابع مشابه
The seco-iridoid pathway from Catharanthus roseus
The (seco)iridoids and their derivatives, the monoterpenoid indole alkaloids (MIAs), form two large families of plant-derived bioactive compounds with a wide spectrum of high-value pharmacological and insect-repellent activities. Vinblastine and vincristine, MIAs used as anticancer drugs, are produced by Catharanthus roseus in extremely low levels, leading to high market prices and poor availab...
متن کاملTotal synthesis of seco-lateriflorone
A convergent strategy toward the synthesis of lateriflorone (5) is described. Our approach is based on biosynthetic considerations and draws on a sequence of prenylation, oxygenation and Claisen reactions for the construction of chromenequinone 6, and a tandem Claisen/Diels–Alder reaction cascade for the synthesis of caged tricycle 7. Union of fragments 6 and 7 led to the synthesis of secolater...
متن کاملGuaianolide and seco-Guaianolide from Salvia nubicola (Lamiaceae)
Salvia is one of the famous genera of the family Lamiacea previously called Labiatae comprising about 800 species throughout the world [1]. Most of the members of this genus are known due to their biologically active chemical constituents specifically reported for anti-tumor activity [2]. A number of Salvia species are used in folk medicines. For example, S. cavaleriei is used for the treatment...
متن کاملThree new 15,16-seco-cycloartane glycosides from Cimicifuga Rhizome.
Three new 15,16-seco-cycloartane glycosides, which were constructed by a C-C bond cleavage in the D ring, have been isolated from Cimicifuga Rhizome for the first time. Their structures were determined by the use of 2D NMR techniques and chemical evidence.
متن کاملCorrigendum: The seco-iridoid pathway from Catharanthus roseus
While this Article was undergoing peer review, Salim et al. (2013), Asada et al. (2013) and Salim et al. (2014) published individual steps of the (seco)iridoid biosynthesis pathway in Catharanthus roseus, including the molecular and biochemical characterization of 7-deoxyloganic acid hydroxylase, 7-deoxyloganetic acid glucosyl transferase and 7-deoxyloganetic acid synthase, which are in agreeme...
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ژورنال
عنوان ژورنال: Journal of the Brazilian Chemical Society
سال: 2008
ISSN: 0103-5053
DOI: 10.1590/s0103-50532008000600004