Scandenoside R₅

CAS Registry Number: 114637-78-4

Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Cucurbitane Type – Carnosiflogenin B

Biological source: Hemsleya panacis-scandens [1]

C₄₈H₇₈O₁₈: 942.518

[α] ²³_D + 59.7° (c 0.39, MeOH) [1]

IR (nujol) ν_max cm⁻¹: 3400, 1680 (C = 0) [1]

¹ H NMR (100 MHz, J/Hz, C₅D₅N): 4.90 (d, J = 7, H-1 of Glc), 4.82 (d, J = 7, H-1 of Glc′), 5.28 (d, J = 8, H-1 of Glc″) [1]

¹³ C NMR (C₅D₅N): [1]

Table 1

C-1	21.8	C-16	28.0	Glc-1	107.2	Glc″-1	106.2
2	28.3	17	49.6	2	75.4	2	76.7
3	87.1	18	16.9	3	78.4	3	78.1
4	41.9	19	20.2	4	71.5	4	71.5
5	141.2	20	35.9	5	78.1	5	78.1
6	118.4	21	18.1	6	62.7	6	62.7
7	24.0	22	36.7	Glc′-1	101.3
8	43.9	23	24.8	2	83.7
9	49.0	24	130.0	3	78.4
10	35.9	25	132.2	4	71.3
11	213.7	26	21.8	5	78.1
12	48.8	27	67.2	6	62.7
13	49.0	28	18.4
14	49.6	29	28.3
15	34.5	30	25.8