Qingyangshengenin B

Qingyangshengenin B, a C-21 steroidal glycoside isolated from Qingyangshen. Qingyangshengenin B protects against Aβ toxicity, which decreases Aβ deposition by decreasing the expression of Aβ at the mRNA level. Qingyangshengenin B has antiepileptic activity.

Product information

CAS Number: 106758-54-7

Molecular Weight: 923.13

Formula: C49H78O16

Chemical Name: (1S,3aR,3bS,7S,9aR,9bR,11R,11aS)-1-acetyl-9b-hydrogenio-7-{[(2R,4S,5R,6R)-2-hydrogenio-5-{[(2S,4S,5R,6R)-2-hydrogenio-5-{[(2S,4R,5R,6R)-2-hydrogenio-5-hydroxy-4-methoxy-6-methyloxan-2-yl]oxy}-4-methoxy-6-methyloxan-2-yl]oxy}-4-methoxy-6-methyloxan-2-yl]oxy}-1,3a,3b-trihydroxy-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-11-yl (2E)-3,4-dimethylpent-2-enoate

Smiles: CC(C)/C(/C)=C/C(=O)O[C@@H]1C[C@H]2[C@@](O)(CC=C3C[C@H](CC[C@@]32C)O[C@H]2C[C@H](OC)[C@H](O[C@H]3C[C@H](OC)[C@H](O[C@H]4C[C@@H](OC)[C@H](O)[C@@H](C)O4)[C@@H](C)O3)[C@@H](C)O2)[C@@]2(O)CC[C@@](O)(C(C)=O)[C@]21C

InChiKey: YLHXSKZGPASTOD-ZMZOTGGVSA-N

InChi: InChI=1S/C49H78O16/c1-25(2)26(3)19-38(51)63-37-24-36-45(8)15-14-32(20-31(45)13-16-48(36,54)49(55)18-17-47(53,30(7)50)46(37,49)9)62-39-22-34(57-11)43(28(5)60-39)65-41-23-35(58-12)44(29(6)61-41)64-40-21-33(56-10)42(52)27(4)59-40/h13,19,25,27-29,32-37,39-44,52-55H,14-18,20-24H2,1-12H3/b26-19+/t27-,28-,29-,32+,33-,34+,35+,36-,37-,39+,40+,41+,42-,43-,44-,45+,46-,47-,48+,49-/m1/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

References:

1. Li JL, et al. Bioactive C21 Steroidal Glycosides from the Roots of Cynanchum otophyllum That Suppress the Seizure-like Locomotor Activity of Zebrafish Caused by Pentylenetetrazole. J Nat Prod. 2015 Jul 24;78(7):1548-55.
2. Yang J, et al. Otophylloside B Protects Against Aβ Toxicity in Caenorhabditis elegans Models of Alzheimer's Disease. Nat Prod Bioprospect. 2017 Apr;7(2):207-214.
3. Li X, et al. Antiepileptic C21 steroids from the roots of Cynanchum otophyllum. J Asian Nat Prod Res. 2015;17(7):724-32.

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