Process for crystallizing N.sup.2 -((S)-1-ethoxycarbonyl-3-pheny

Details Process for crystallizing N.sup.2 -((S)-1-ethoxycarbonyl-3-pheny Process for crystallizing N.sup.2 -((S)-1-ethoxycarbonyl-3-pheny

1996-05-03

1998-09-01

Richter, Johann

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20716

Patent

active

058012516

ABSTRACT:
A process for crystallizing N.sup.2 -((S)-1-ethoxycarbonyl-3-phenylpropyl)-N.sup.6 -trifluoroacetyl-L-lysyl-L-proline using one or a mixture of at least two kinds of compound having the general formula: CR.sup.1 R.sup.2 R.sup.3 R.sup.4 as a crystallizing solvent, optionally with an auxiliary solvent which controls crystallization condition.

REFERENCES:
patent: 4687840 (1987-08-01), Pang et al.
patent: 4868312 (1989-09-01), Maeda et al.
patent: 5227497 (1993-07-01), Inoue et al.
patent: 5359086 (1994-10-01), Merslavic et al.
patent: 5387696 (1995-02-01), Kottenhahn et al.
patent: 5519146 (1996-05-01), Ueda et al.
International Search Report for International Appln. No. PCT/JP93/01909 mailed April 12, 1994.

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