97694-41-2

Upstream product

• 132000-13-6 2,3,4a,9a-Tetrahydroanthracene-1,4,9,10-tetraone 
• 97694-40-1 3-O-benzyl-3-C-ethynyl-1,2-O-isopropylidene-α-D-ribo-pentodialdo-1,4-furanose 

Downstream Products

• 97694-43-4 (5S)-3-O-benzyl-3-C-ethynyl-5-(quinizarin-2-yl)-α-(β)-D-ribopyranose 

Relevant academic research and scientific papers

ANTHRACYCLINONES. PART 3. USE OF DI-ISOPROPYLIDENE-D-GLUCOSE AND A MODIFIED MARSCHALK REACTION TO INTRODUCE A TERTIARY CARBINOL FUNCTION INTO RING D OF ANTHRACYCLINONES

Reaction of 3-C-ethynyl-1,2-O-isopropylidene-α-D-ribo-pentodialdo-1,4-furanose (2b) with leuco-quinizarin (4) in alkaline solution gave a mixture of (5S)- and (5R)-3-C-ethynyl-1,2-O-isopropylidene-5-(quinizarin-2-yl)-α-D-ribofuranose (11a) and (11b) respe