| abstract |
(57) [Abstract] [Problem] Formula (I) (Wherein, X and X 'are the same or different, O, S or NR, R 1 is unsubstituted (C 3 -C 10) branched alkyl, or, a (C 3 ~ 6) cycloalkyl 1 or 2 substituted (C 1 -C 4 ) straight chain alkyl, R 1 has 10 or fewer carbon atoms; A and B are the same or different and are unsubstituted or substituted, naphthyl or A phenyl compound). One method is the process of formula A- in the presence of a base in an inert or substantially inert solvent or mixed solvent. C (= X) -Y (wherein, Y is a good leaving group) Compound of is reacted with a monosubstituted hydrazine or a corresponding acid addition salt thereof of the formula NH 2 NHR 1, wherein A-C (= X) -N A compound of formula BC (= X ')-Y is produced which, in the presence of a base, in an inert or substantially inert solvent or mixed solvent yields an intermediate product of HMHR 1 . Reacting to produce a compound of formula (I). |