Takeda Chemical Industries, Inc.

Mitsuhiko Mano

Masahiko Fujino

Osamu Nishimura

Mitsuhiro Wakimasu

Kin-ichi Imai

Hisashi Aoki

Nobuo Nakajima

Improved processes for producing purine derivatives, such as 9-(2-chloro-6-fluorobenzyl)-6-methylaminopurine, which are useful as anticoccidial agents, and new arylazopyrimidine compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 each is hydrogen, C.sub.1-3 alkyl, allyl or dihalobenzyl, and when either one of R.sup.1 and R.sup.2 is hydrogen, the other is other than hydrogen, and R.sup.3 is aryl, and acid addition salts thereof, which are useful as intermediates for production of the purine derivatives.

Production of purine derivatives and intermediates therefor

A novel dipeptide, L-aspartyl-aminomalonic acid methyl 2-methylcyclohexyl diester and its physiologically acceptable salts which are useful as a sweetener, and production thereof and sweetening compositions containing the dipeptide or its salt.

L-Aspartyl-aminomalonic acid methyl 2-methylcyclohexyl diester

Growing community of inventors

Settsu, Japan

Mitsuhiko Mano