Chemoenzymatic syntheses of two optically active hexa-azamacrocycles
摘要:
Two optically active hexa-azamacrocycles with C-2 and D-2 symmetry, respectively, have been efficiently synthesized from the enzymatically prepared (R,R)-cyclohexane-1,2-diamine bis(amidoester) derivative (R,R)-4. (C) 1999 Elsevier Science Ltd. All rights reserved.
Sequential biocatalytic resolution of (±)-trans-cyclohexane-1,2-diamine. Chemoenzymatic synthesis of an optically active polyamine
摘要:
Candida antarctica lipase-catalysed double monoaminolysis of dimethyl malonate by (+/-)-trans-cyclohexane-1,2-diamine allows the sequential resolution of the latter compound, affording an enantiopure bis(amidoester), (R,R)-3, which is subsequently transformed into an optically active polyamine, (R,R)-9.