Plant chemistryBibenzyl derivatives from the orchid Bulbophyllum protractum
References (32)
- et al.
Phytochemistry
(1991) - et al.
Phytochemistry
(1993) - et al.
Phytochemistry
(1993) - et al.
Phytochemistry
(1990) - et al.
Phytochemistry
(1991) - et al.
Phytochemistry
(1982) - et al.
Phytochemistry
(1990) - et al.
Phytochemistry
(1990) - et al.
Phytochemistry
(1991) - et al.
Phytochemistry
(1990)
Tetrahedron
Tetrahedron
Phytochemistry
Phytochemistry
Phytochemistry
Phytochemistry
Cited by (39)
The rhizome of Bulbophylllum orchid is the rich source of cytotoxic bioactive compounds, the potential anticancer agents
2021, South African Journal of BotanyCitation Excerpt :Compound 2 was a yellowish powder, in agreement with 9,10-dihydro-7-methoxy-2,5-phenanthrenediol, CID: 442702 (lusianthridin) (Majumder and Lahiri, 1990); for 13C (100 MHz) and 1H (400 MHz) NMR data (CDCl3 + DMSO-d6) (Table 1); HRESI-MS (negative); m/z 241.0870 [M−H]− (calcd for C15H13O3, 241.0870). Compound 3 was a reddish gum, in agreement with 3,3′-dihydroxy-5-methoxy bibenzyl, CID: 10466989 (batatasin-III) (Majumder et al., 1997); for 13C (100 MHz) and 1H (400 MHz) NMR data (CDCl3 + DMSO-d6) (Table 1), HRESI-MS (positive); m/z 267.0998 [M+Na]+ (calcd for C15H16O3Na, 267.0992). Compound 4 was a reddish gum, in agreement with the literature for gigantol, CID: 3085362 (Chen et al., 2008); for 13C (100 MHz) and 1H (400 MHz) NMR data (CDCl3) (Table 1); HRESI-MS (negative); m/z 273.1140 [M−H]− (calcd for C16H17O4, 273.1132).
Stilbenoids from Bulbophyllum emarginatum (Orchidaceae)
2015, Biochemical Systematics and EcologyCitation Excerpt :Coelogin (5), flaccidin (6) and flavidin (7) were 9,10-dihydro-5H-phenanthro-(4,5-b,c,d)-pyrans. Previously, only three compounds of this type were isolated from Bulbophyllum species (Majumder et al., 1997; Veerraju et al., 1989). It is the first time for coelogin (5) been reported from Bulbophyllum species though it has been isolated previously from other orchids such as Coelogyne cristata Lindl. (
Two new flavanone glycosides from Sunipia scariosa
2014, Biochemical Systematics and EcologyCitation Excerpt :The bibenzyls, 3,4′-dihydroxy-5-methoxy bibenzyl (6), batatasin III (7), and gigantol (8) are common in Orchidaceae plants (Miyazawa et al., 1997; Veerraju et al., 1989; Zhao et al., 2003). The 9,10-dihydro-5H-phenanthro-(4,5-b,c,d)-pyrans, flavidin (9) and flavidinin (10) were isolated from the orchids such as in the genus Arundina, Bulbophyllum, Coelogyne, Dendrobium, Otochilus, and Pholidota (Majumder et al., 1982; Veerraju et al., 1989; Majumder and Ghosal, 1993; Anuradha and Prakasarao, 1994; Majumder et al., 1997; Chen et al., 2013). In conclusion, the findings reported herein demonstrated that chemical compounds from the whole plants of S. scariosa matches closely with the ones observed in other report on the orchids.
Four new bibenzyl derivatives from Dendrobium sinense
2014, Phytochemistry LettersCitation Excerpt :290.1154 for C16H18O5, [M]+), indicating a molecular formula of C16H18O5, which was secured by the 1H and 13C NMR spectra. The UV absorptions (λmax 213 and 278 nm) were characterized as a bibenzyl skeleton (Majumder et al., 1997). The IR spectrum revealed the presence of the hydroxyl group (3649 cm−1), as well as aromatic groups (1611, 1540, 1457, 1240, and 833 cm−1).
Phenanthrenes from Eria stricta Lindl
2014, Biochemical Systematics and EcologyCitation Excerpt :Among the three 9,10-dihydrophenanthropyrans isolated in this study, 1 and 2, formed between a propylphenyl and a 9,10-dihydrophenanthrene, were reported only from the orchids Pleione bulbocodioides and Bletilla striata (Bai et al., 1996; Yamaki et al., 1993). 3 is a 9,10-dihydro-5H-phenanthro-(4,5-b,c,d)-pyran widely existed in the orchids such as in the genus Arundina, Bulbophyllum, Coelogyne, Dendrobium, Otochilus, and Pholidota (Majumder et al., 1982b; Veerraju et al., 1989; Majumder and Ghosal, 1993; Anuradha and Prakasarao, 1994; Majumder et al., 1997; Chen et al., 2013), however it has never been isolated from any Eris species. It is the first time that 9,10-dihydrophenanthropyran was found from the genus Eria.
Stilbenes, lignans, and phenols from Abies chensiensis
2008, Biochemical Systematics and Ecology