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ChemicalBook CAS DataBase List (S)-4,5,6,7-Tetrahydro-N2,N6-propionyl-2,6-benzothiazolediaMine

(S)-4,5,6,7-Tetrahydro-N2,N6-propionyl-2,6-benzothiazolediaMine synthesis

3synthesis methods
-

Yield:1373869-91-0 455 mg ,1373869-92-1 129 mg

Reaction Conditions:

with oxygen;Rose Bengal lactone for 6 h;Irradiation;

Steps:

Photo-degradation in liquid state

Pramipexole free base (2.0 g) and rosebengal (0.1 g) were dissolved in MeOH (500 mL). The mixture was irradiated with bubbling oxygen under fluorescent lamp for 6 h. Then the reaction mixture was concentrated, and chromatographed over silica gel, using AcOEt-MeOH (9:1 to 8:2) as eluent to give 3 (455 mg) and 4 (129 mg).

References:

Nishimura, Eiji;Kugimiya, Aya;Naoki, Hideo;Hamanaka, Nobuyuki [Bioorganic and Medicinal Chemistry Letters,2012,vol. 22,# 8,p. 2951 - 2953] Location in patent:experimental part