abstract |
Disclosed is a compound of formula 1, as shown below, where R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 are as described herein. Also, disclosed is a process for the preparation of compounds of formula 1, and intermediates used therein. The compound of formula 1 can be useful for preparation of halichondrin analogs such as Eribulin. |