abstract |
(57) Abstract: A compound of the general formula [VI] is added to a compound of the general formula [IIb]. The compound of general formula [III] is obtained by reacting the nucleophile of Embedded image (X and Y are groups in which one of α and β is H and the other is a hydroxyl group, R 1 is, for example, H or an alkyl group, R 2 is, for example, an alkyl group, and M 1 is a metal such as Li. N is 1 Or 2.) |