Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Cacilda J. Aiba"'
Publikováno v:
Phytochemistry. 14:1597-1604
Autor:
Mauro Taveira Magalhães, Cacilda J. Aiba, Massayoshi Yoshida, Frida M. Pagliosa, Otto R. Gottlieb
Publikováno v:
Phytochemistry. 16:745-748
Seven neolignans, isolated from a C 6 H 6 extract of Nectandra miranda (Lauraceae) trunk wood, included the hitherto undescribed (2 S , 3 S , 3a S )- and (2 S , 3 S , 3a R )-5-allyl-3a-methoxy-2-(3′, 4′, 5′-trimethoxyphenyl)-3-methyl-2, 3, 3a,
Publikováno v:
Phytochemistry. 12:413-416
The wood of Ocotea porosa (Nees) L. Barr. (Lauraceae) contains sitosterol, sesquiterpenes, n-octacosanoic acid, n-hexacosanoic acid and the neolignan porosin for which the structure of 3a-allyl-5-methoxy-3-methyl-2-veratryl-2,3,3a,6,7,7a-hexahydro-6-
Autor:
Otto R. Gottlieb, Cacilda J. Aiba
Publikováno v:
Phytochemistry. 14:253-255
The synthesis of (±)-licarin-B, a neolignan of Licaria aritu Ducke (Lauraceae), was achieved by pyrolysis of 3-hydroxy-3-piperonyl-1-propyl-2-methoxy-4-(E)-propenylphenyl ethers.
Autor:
Cacilda J. Aiba, Otto R. Gottlieb, Frida M. Pagliosa, Marden A. De Alvarenga, Astréa M. Giesbrecht, Castro C. Oscar
Publikováno v:
Phytochemistry. 16:741-743
Forteen neolignans, isolated from the benzene extract of Aniba simulans (Lauraceae) trunk wood, included the hitherto undescribed (2 S , 3 S , 5 R )-5-allyl-5,7-dimethoxy-2-(3′,4′,5′-trimethoxyphenyl)-3-methyl-2,3,5,6-tetra-hydro-6-oxobenzofura
Publikováno v:
Phytochemistry. 17:2038-2039
The trunkwood of Licaria armeniaca (Nees) Kosterm. (Lauraceae) contains sitosterol, 6,7-dimethoxy-coumarin and two novel benzofuranoid neolignans: (2 S , 3 S , 3 aR , 5 R )-3 a -allyl-5-methoxy- and 5,7-dimethoxy-2-(3′, 4′-methylenedioxyphenyl)-3
Publikováno v:
Phytochemistry. 15:1031-1032
The reported structure of porosin, 3a-allyl-5-methoxy-3-methyl-2-veratryl-2,3,3a,6,7,7a-hexahydro-6-oxo-benzofuran, is revised with respect to Δ-4,5. 1 H NMR (LIS), UV and photochemical evidence shows that the double bond is located at the 7,7a-posi
Publikováno v:
Phytochemistry. 12:1163-1164
The wood of Licaria aritu Ducke (Lauraceae) contains the neolignans licarin-A, (2 S ,3 S )-2,3-dihydro-2-(4′-hydroxy-3′-methoxyphenyl)-7-methoxy-3-methyl-5- trans -propenylbenzofuran and licarin-B, (2 S , 3 S )-2,3-dihydro-7-methoxy-3-methyl-2-pi