摘要 |
<p>The invention relates to a process for the optical resolution of a dibenzo[b,d]azepinone derivative of the formula (II) wherein R1 is hydrogen or halogen and R2 has the meaning of C1- 4-alkyl optionally substituted with C3-7-cycloalkyl or benzyl which is optionally substituted with C1-4-alkoxy to obtain a (S)-7-amino-5H,7H-dibenzo[b,d]azepin-6-one of the formula (I) wherein R1 is as above. The (S)-7-amino-5H,7H-dibenzo[b,d]azepin-6-ones of formula (I) can be used as chiral building blocks for the preparation of malonamide derivatives which have the potential to act as γ-secretase inhibitors and therefore may be useful in the treatment of Alzheimer's disease and cancer.</p> |