UK-2A or reductive cleavage of the exocyclic ester derivatives thereof, and products formed therefrom

摘要

To generate chemical compound GF-II it reacts chemical compound GF-I with the reducing agent in order includes the fact that being the process which, Y H, the benzyl and the displacement benzyl, CH₂ OC_1-8 alkyl and CH₂ OC_{3-8 the} cycloalkyl, allyl, the tetrahydropyranyl, the tetrahydrofuranyl and the displacement tetrahydropyranyl, the displacement tetrahydrofuranyl, Si (C_1-4 alkyl) ₃, and Si (PH) _x (C_1-4 alkyl) _3-x (in formula, as for x) consists of equal to 1, 2 or 3 to be chosen from the group which, the said process: (A) under existing of reducing agent; (B) under existing of aprotic solvent; (The process which is executed under c) reaction condition is offered. Furthermore, the new chemical compound which then generates is offered.