1
Ashida Kaneyoshi, Van Der Loos Jozef Lambertus M, Frisch Kurt Charles: Process for preparing an n-substituted carbamoyl-lactam compound.. Stamicarbon, October 16, 1985: EP0158393-A1 (4 worldwide citation)

The invention concerns a process for preparing an N-substituted carbamoyl-lactam compound having the formula by reactively admixing a polyhydroxy compound having the formula R(OH)n and a polyisocyanate having the formula OCN-R min -NCO, wherein said n is an integer >/=3, R is the residual of a three ...


2
Kaneyoshi Ashida, Jozef L M van der Loos, Kurt C Frisch: Process for preparing an N-substituted carbamoyl-lactam compound. Cushman Darby & Cushman, September 30, 1986: US04614615 (1 worldwide citation)

The invention relates to a process for preparing an N-substituted carbamoyl-lactam compound having the formula: ##STR1## by admixing a polyhydroxy compound having the formula R(OH).sub.n with a polyisocyanate having the formula OCH--R'--NCO, wherein said