Arecatannin B1

Arecatannin B1
Names
	Other names Epicatechin-(4β→8)-epicatechin-(4β→6)-catechin
Identifiers
CAS Number	79763-28-3 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:75642 ;
ChemSpider	10290128 ;
KEGG	C17892;
PubChem CID	14237657;
CompTox Dashboard (EPA)	DTXSID40557801 ;
	InChI InChI=1S/C45H38O18/c46-18-10-26(53)33-32(11-18)62-43(16-2-5-21(48)24(51)8-16)40(59)37(33)35-27(54)13-28(55)36-38(41(60)44(63-45(35)36)17-3-6-22(49)25(52)9-17)34-29(56)14-31-19(39(34)58)12-30(57)42(61-31)15-1-4-20(47)23(50)7-15/h1-11,13-14,30,37-38,40-44,46-60H,12H2/t30-,37+,38-,40+,41+,42+,43+,44+/m0/s1 Key: PBYRKMXDROOXMU-XKDUFCMJSA-N ; InChI=1/C45H38O18/c46-18-10-26(53)33-32(11-18)62-43(16-2-5-21(48)24(51)8-16)40(59)37(33)35-27(54)13-28(55)36-38(41(60)44(63-45(35)36)17-3-6-22(49)25(52)9-17)34-29(56)14-31-19(39(34)58)12-30(57)42(61-31)15-1-4-20(47)23(50)7-15/h1-11,13-14,30,37-38,40-44,46-60H,12H2/t30-,37+,38-,40+,41+,42+,43+,44+/m0/s1 Key: PBYRKMXDROOXMU-XKDUFCMJBX;
	SMILES Oc1ccc(cc1O)[C@H]9Oc2cc(O)cc(O)c2[C@H](c8c(O)cc(O)c3c8O[C@@H]([C@H](O)[C@H]3c6c(O)cc5O[C@H](c4ccc(O)c(O)c4)[C@@H](O)Cc5c6O)c7ccc(O)c(O)c7)[C@H]9O;
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).
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	Infobox references

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

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Types of procyanidins
A-type proanthocyanidins	Dimers : Procyanidin A1 A2 Trimers:Cinnamtannin B1 Tetramers: Arecatannin A2
B type proanthocyanidins	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
Types	Arecatannins Arecatannin A1 Arecatannin A3 Arecatannin B2 Arecatannin C1