12-Acetyl-6-hydroxy-3,3,9,9-tetramethylfuro[3,4-b]pyrano[3,2-h]-xanthene-7,11(3H,9H)-dione
The title compound, Artonol B, C24H20O7, isolated from the stem bark of Artocarpus kemando, consists of four six-membered rings and one five-membered ring. The tricyclic xanthone ring system is almost planar [maximum deviation 0.115 (5) Å], whereas the pyranoid ring is in a distorted boat conformat...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
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International Union of Crystallography
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/12630/ http://psasir.upm.edu.my/id/eprint/12630/1/12-Acetyl-6-hydroxy-3%2C3%2C9%2C9-tetramethylfuro%5B3%2C4-b%5Dpyrano%5B3%2C2-h%5D-xanthene-7%2C11%283H%2C9H%29-dione.pdf |
| _version_ | 1848841886962286592 |
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| author | Cheng, Gwendoline Lian Ee Siow, Hwa Teo Huey, Chong Kwong Mohamed Tahir, Mohamed Ibrahim Silong, Sidik |
| author_facet | Cheng, Gwendoline Lian Ee Siow, Hwa Teo Huey, Chong Kwong Mohamed Tahir, Mohamed Ibrahim Silong, Sidik |
| author_sort | Cheng, Gwendoline Lian Ee |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The title compound, Artonol B, C24H20O7, isolated from the stem bark of Artocarpus kemando, consists of four six-membered rings and one five-membered ring. The tricyclic xanthone ring system is almost planar [maximum deviation 0.115 (5) Å], whereas the pyranoid ring is in a distorted boat conformation·The furan ring is almost coplanar with the fused aromatic ring, making a dihedral angle of 3.76 (9)°. The phenol ring serves as a intramolecular hydrogen-bond donor to the adjacent carbonyl group and also acts as an intermolecular hydrogen-bond acceptor for the methyl groups of adjacent molecules, forming a three-dimensional network in the crystal. |
| first_indexed | 2025-11-15T07:50:22Z |
| format | Article |
| id | upm-12630 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T07:50:22Z |
| publishDate | 2010 |
| publisher | International Union of Crystallography |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-126302015-11-02T06:32:27Z http://psasir.upm.edu.my/id/eprint/12630/ 12-Acetyl-6-hydroxy-3,3,9,9-tetramethylfuro[3,4-b]pyrano[3,2-h]-xanthene-7,11(3H,9H)-dione Cheng, Gwendoline Lian Ee Siow, Hwa Teo Huey, Chong Kwong Mohamed Tahir, Mohamed Ibrahim Silong, Sidik The title compound, Artonol B, C24H20O7, isolated from the stem bark of Artocarpus kemando, consists of four six-membered rings and one five-membered ring. The tricyclic xanthone ring system is almost planar [maximum deviation 0.115 (5) Å], whereas the pyranoid ring is in a distorted boat conformation·The furan ring is almost coplanar with the fused aromatic ring, making a dihedral angle of 3.76 (9)°. The phenol ring serves as a intramolecular hydrogen-bond donor to the adjacent carbonyl group and also acts as an intermolecular hydrogen-bond acceptor for the methyl groups of adjacent molecules, forming a three-dimensional network in the crystal. International Union of Crystallography 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/12630/1/12-Acetyl-6-hydroxy-3%2C3%2C9%2C9-tetramethylfuro%5B3%2C4-b%5Dpyrano%5B3%2C2-h%5D-xanthene-7%2C11%283H%2C9H%29-dione.pdf Cheng, Gwendoline Lian Ee and Siow, Hwa Teo and Huey, Chong Kwong and Mohamed Tahir, Mohamed Ibrahim and Silong, Sidik (2010) 12-Acetyl-6-hydroxy-3,3,9,9-tetramethylfuro[3,4-b]pyrano[3,2-h]-xanthene-7,11(3H,9H)-dione. Acta Crystallographica Section E: Structure Reports Online, 66 (12). pp. 3331-3332. ISSN 1600-5368; ESSN:1600-5368 http://dx.doi.org/10.1107/S1600536810048592 Artocarpus Flavonoids Chemical structure 10.1107/S1600536810048592 English |
| spellingShingle | Artocarpus Flavonoids Chemical structure Cheng, Gwendoline Lian Ee Siow, Hwa Teo Huey, Chong Kwong Mohamed Tahir, Mohamed Ibrahim Silong, Sidik 12-Acetyl-6-hydroxy-3,3,9,9-tetramethylfuro[3,4-b]pyrano[3,2-h]-xanthene-7,11(3H,9H)-dione |
| title | 12-Acetyl-6-hydroxy-3,3,9,9-tetramethylfuro[3,4-b]pyrano[3,2-h]-xanthene-7,11(3H,9H)-dione |
| title_full | 12-Acetyl-6-hydroxy-3,3,9,9-tetramethylfuro[3,4-b]pyrano[3,2-h]-xanthene-7,11(3H,9H)-dione |
| title_fullStr | 12-Acetyl-6-hydroxy-3,3,9,9-tetramethylfuro[3,4-b]pyrano[3,2-h]-xanthene-7,11(3H,9H)-dione |
| title_full_unstemmed | 12-Acetyl-6-hydroxy-3,3,9,9-tetramethylfuro[3,4-b]pyrano[3,2-h]-xanthene-7,11(3H,9H)-dione |
| title_short | 12-Acetyl-6-hydroxy-3,3,9,9-tetramethylfuro[3,4-b]pyrano[3,2-h]-xanthene-7,11(3H,9H)-dione |
| title_sort | 12-acetyl-6-hydroxy-3,3,9,9-tetramethylfuro[3,4-b]pyrano[3,2-h]-xanthene-7,11(3h,9h)-dione |
| topic | Artocarpus Flavonoids Chemical structure |
| url | http://psasir.upm.edu.my/id/eprint/12630/ http://psasir.upm.edu.my/id/eprint/12630/ http://psasir.upm.edu.my/id/eprint/12630/ http://psasir.upm.edu.my/id/eprint/12630/1/12-Acetyl-6-hydroxy-3%2C3%2C9%2C9-tetramethylfuro%5B3%2C4-b%5Dpyrano%5B3%2C2-h%5D-xanthene-7%2C11%283H%2C9H%29-dione.pdf |