Skip to Content
Merck
CN
  • New pregnane glycoside derivative from Caralluma retrospiciens (Ehrenb).

New pregnane glycoside derivative from Caralluma retrospiciens (Ehrenb).

Natural product research (2015-01-24)
Mahmoud Fahmi Elsebai, Ietidal El-Tahir Mohamed
PMID25613301
ABSTRACT

Retrospinoside (1) is a new polyoxy pregnane glycoside which was isolated and characterised from the aerial parts of Caralluma retrospiciens (Ehrenb.) N. E. Br., family Apocynaceae. The structure was established as 3-O-[β-D-glucopyranosyl-(1 → 4)-β-D-(3-O-methyl-6-desoxygalactopyranosy)]-14,15,20-trihydroxy-4β-pregnane. Its structural elucidation was performed through extensive spectroscopic measurements including 1D- and 2D-NMR, and HRMS, in addition to chemical methods.

MATERIALS
Product Number
Brand
Product Description
494275
Sigma-Aldrich
Chloroform-d, "100%", 99.96 atom % D, contains 0.03 % (v/v) TMS
416754
Sigma-Aldrich
Chloroform-d, ≥99.8 atom % D, contains 0.5 wt. % silver foil as stabilizer
431915
Sigma-Aldrich
Chloroform-d, "100%", 99.96 atom % D, contains 0.5 wt. % silver wire as stabilizer
151858
Sigma-Aldrich
Chloroform-d, "100%", 99.95 atom % D
570699
Sigma-Aldrich
Chloroform-d, ≥99.8 atom % D, anhydrous
434876
Sigma-Aldrich
Chloroform-d, 99.8 atom % D, contains 0.1 % (v/v) TMS
225789
Sigma-Aldrich
Chloroform-d, 99.8 atom % D, contains 0.03 % (v/v) TMS
612200
Sigma-Aldrich
Chloroform-d, 99.8 atom % D, contains 0.05 % (v/v) TMS
151823
Sigma-Aldrich
Chloroform-d, 99.8 atom % D
151831
Sigma-Aldrich
Chloroform-d, 99.8 atom % D, contains 1 % (v/v) TMS
530735
Sigma-Aldrich
Chloroform-d, ≥99.8 atom % D, contains 0.5 wt. % silver foil as stabilizer, 0.03 % (v/v) TMS