Arecatannin B1

Arecatannin B1
Names

Other names Epicatechin-(4β→8)-epicatechin-(4β→6)-catechin
Identifiers
CAS Registry Number	79763-28-3^Y
ChEBI	CHEBI:75642
ChemSpider	10290128^Y
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^Y Key: PBYRKMXDROOXMU-XKDUFCMJSA-N^Y 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
Jmol-3D images	Image
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 noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Y verify (what is: Y/N?)
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

External links

Arecatannin B1 on http://herbdb.koushi.pref.okinawa.jp (Japanese)

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 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)

Types	Arecatannins Arecatannin A1 Arecatannin A3 Arecatannin B2 Arecatannin C1