Production of enantiomerically enriched ortho-substituted...

Details Production of enantiomerically enriched ortho-substituted... Production of enantiomerically enriched ortho-substituted...

C - Chemistry, Metallurgy

07

C

C07C 233/56 (2006.01) C07C 37/00 (2006.01) C07C 39/12 (2006.01) C07C 213/08 (2006.01) C07C 215/68 (2006.01) C07C 231/18 (2006.01) C07C 235/74 (2006.01) C07C 319/12 (2006.01) C07C 323/19 (2006.01) C07D 213/60 (2006.01) C07D 239/32 (2006.01) C07D 249/02 (2006.01) C07D 251/22 (2006.01) C07D 307/56 (2006.01) C07D 333/30 (2006.01)

Patent

CA 2211981

A method of producing compounds of formula (I), wherein one of R1 and R2 is selected from -OH, -SH, and -NHR7; and the other of R1 and R2 is selected from H, -OH, -SH, -NHR7 and R8; R3 and R4 are each independently selected from R8; n and m are each independently 3; and each R5 and each R6 is independently selected from -OH, -SH, -NHR7, and R8; and R8 is as detailed in the specification; in enantiomerically enriched form, comprising reducing a compound of formula (H), wherein R1-R6 are defined as in formula (I), in the presence of B-haloisopinocampheylborane.

Méthode de production de composés ayant la formule (I) où l'un des deux groupes R1 ou R2 est soit -OH, soit -SH, soit -NHR7; et l'autre est soit H, soit -OH, soit -SH, soit NHR7, soit R8; R3 et R4 sont choisis indépendamment dans R8; n et m ont la valeur 3, et R5 et R6, choisis indépendamment, peuvent être soit -OH, soit -SH, soit NHR7, soit R8; et R8 correspond à la description donnée dans les spécifications, sous une forme énantiomériquement enrichie, consistant notamment à réduire un composé de formule (II) où R1-R6 sont définis comme dans la formule (I), en présence de B-haloisopinocampheylborane.

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