Arecatannin B1
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IUPAC name [(2R,3R,4R)-Flavan-3,3′,4′,5,7-pentol]-(4→8)-[(2R,3R,4S)-flavan-3,3′,4′,5,7-pentol]-(4→6)-[(2R,3S)-flavan-3,3′,4′,5,7-pentol] | |
Systematic IUPAC name (12R,13R,14R,22R,23R,24S,32R,33S)-12,22,32-Tris(3,4-dihydroxyphenyl)-13,14,23,24,33,34-hexahydro-12H,22H,32H-[14,28:24,36-ter-1-benzopyran]-13,15,17,23,25,27,33,35,37-nonol | |
Other names Epicatechin-(4β→8)-epicatechin-(4β→6)-catechin | |
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InChI
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Properties | |
Chemical formula | C45H38O18 |
Molar mass | 866.77 g/mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references |
Chemical compound
Arecatannin B1 is a B type proanthocyanidin found in the betel nut.[1] It is an arecatannin trimer with a 4β→6 bond.
References
- ^ Screening of various plant extracts used in Ayurvedic medicine for inhibitory effects on human immunodeficiency virus type 1 (HIV-1) protease. Kusumoto I.T., Nakabayashi T., Kida H., Miyashiro H., Hattori M., Namba T. and Shimotohno K., PTR. Phytotherapy research, 1995, vol. 9, no3, pp. 180-184, INIST 3499215
External links
- Arecatannin B1 on http://herbdb.koushi.pref.okinawa.jp (Japanese)
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Types of procyanidins
- Dimers : Procyanidin A1
- A2
- Trimers:Cinnamtannin B1
- Tetramers: Arecatannin A2
- Dimers : Procyanidin B1
- B2
- B3
- B4
- B5
- B6
- B8
- D (ent-Epicatechin(4α→8)catechin)
- Trimers: Arecatannin B1 (epicatechin-(4β→8)-epicatechin-(4β→6)-catechin)
- Procyanidin C1 (epicatechin-(4β→8)-epicatechin-(4β→8)-epicatechin)
- Procyanidin C2 (catechin-(4α→8)-catechin-(4α→8)-catechin)
- Tetramers : Cinnamtannin A2
- Arecatannins
- Arecatannin A1
- Arecatannin A3
- Arecatannin B2
- Arecatannin C1
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