preparation process of 3- 5 '- (3,4-bishydroxymethylbenzyloxy) -2'-ethyl-2-propylbenzyl-4-yl -penta-3-ol compound, preparation process and use of 6-ethyl-4 '- (1-ethyl-1-hydroxy-propyl) -2'-propyl-biphenyl-3-ol

摘要

3- ¢ 5 '- (3,4-Bis-Hydroxymethyl-benzyloxy) -2'-Ethyl-2-propyl-steak NIL-4-yl-PENTA-3-OL PREPARATION PROCESS, COMPOSITE, PREPARATION PROCESS AND USE OF 6-ETHYL-4 '- (1-ETHYL-1-HYDROXY-PROPIL) -2'-PROPIL-BIPHENYL-3-OL. The present invention is a novel process for the manufacture of 3- [5 '- (3,4-bishydroxymethyl benzyloxy) -2'-ethyl-2-propyl-biphenyl-4-yl] -penta-3-yl. as well as a new compound, 6-ethyl-4 '- (1-ethyl-1-hydroxy-propyl) -2'-propyl-biphenyl-3-yl, useful as a synthesis intermediate in said process.