View source for Koryoginsenoside-R2

{{Hierarchy|{{PAGENAME}}}}

{{Metabolite
|SysName=(3beta,12beta,22E)-20-((6-O-beta-D-Glucopyranosyl-beta-D-glucopyranosyl)oxy)-12,25-dihydroxydammar-22-en-3-yl 2-O-beta-D-glucopyranosyl-beta-D-glucopyranoside
|Common Name=&&Koryoginsenoside R2&&
|CAS=171746-13-7
|KNApSAcK=
}}


==Spectroscopic Data==

{| class="wikitable" style="width:80%"
|-
| '''M.P.''' || 177 - 180 °C 
|-
| '''<sup>1</sup>H-NMR''' (C<sub>5</sub>D<sub>5</sub>N, 400 MHz)|| 0.83 (s, 3xH-30), 0.88 (s, 3xH-19), 1.02 (s, 3xH-18), 1.09 (s, 3xH-29), 1.27 (s, 3xH-28), 1.58 (s, 3xH-27), 1.62 (s, 3xH-26), 1.63 (s, 3xH-21), 2.87 (dd, ''J''=13.2, 5.8 Hz, H-22alpha), 3.09 (dd, ''J''=12.5, 4.7 Hz, H-22beta), 3.25 (dd, ''J''=11.5, 4.2 Hz, H-3), 4.02 (dd, ''J''=10.7, 8.2 Hz, H-12), 4.90 (d, ''J''=7.6 Hz, H-1 of Glc II), 5.09 (d, ''J''=7.5 Hz, H-1 of Glc III), 5.17 (d, ''J''=7.8 Hz, H-1 of Glc IV), 5.37 (d, ''J''=7.8 Hz, H-1 of Glc I), 6.12 (d, ''J''=15.6 Hz, H-24), 6.15 (ddd, ''J''=15.6, 8.5 Hz, H-23)
|-
| '''<sup>13</sup>C-NMR''' (C<sub>5</sub>D<sub>5</sub>N, 100 MHz)|| C-1) 39.3, (2) 26.8, (3) 89.2, (4) 40.2, (5) 56.6, (6) 18.6, (7) 35.2, (8) 40.2, (9) 50.3, (10) 37.1, (11) 31.0, (12) 70.6, (13) 49.7, (14) 51.6, (15) 30.7, (16) 26.4, (17) 52.2, (18) 16.3, (19) 16.1, (20) 83.5, (21) 23.5, (22) 138.2, (23) 126.7, (24) 39.8, (25) 81.4, (26) 25.5, (27) 25.2, (28) 28.2, (29) 16.7, (30) 17.3 '''Glc I''' (1) 105.0, (2) 83.3, (3) 78.3, (4) 71.8, (5) 78.4, (6) 63.0 '''Glc II''' (1) 106.0, (2) 77.1, (3) 78.8, (4) 71.9, (5) 78.4, (6) 63.0 '''Glc III''' (1) 98.2, (2) 75.3, (3) 78.0, (4) 71.9, (5) 77.1, (6) 70.1 '''Glc IV''' (1) 105.1, (2) 75.3, (3) 78.3, (4) 71.9, (5) 78.4, (6) 63.0  
|}
<small>C.-R. Yang et al., Phytochemistry, 40, 4193 (1995).</small>