Process for preparing optically active benzothiazepine compounds

Details Process for preparing optically active benzothiazepine compounds Process for preparing optically active benzothiazepine compounds

1993-01-08

1994-05-10

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

C07D28102

Patent

active

053109040

ABSTRACT:
Process for preparing optically active cis-3-hydroxy-2,3-dihydro-1,5-benzothiazepin-4(5H)-one compounds [I] of the formula: ##STR1## wherein Ring A and Ring B are substituted or unsubstituted benzene, R.sup.1 is hydrogen or di-lower alkylaminoalkyl, which comprises subjecting 1,5-benzothiazepin-4(5H)-one (II) of the formula [II]: ##STR2## wherein R.sup.4 is hydrogen or lower alkanoyl, and the other symbols are the same as defined above, to asymmetric reduction with a reaction product of optically active .alpha.-amino acid and metal hydride, in high optically yield, and said compounds [I] are very important as intermediate for preparing various medicines.

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