NOVEL PLATINUM(II)COMPLEX AND REMEDY FOR MALIGNANT TUMOR

    公开(公告)号:JPH01165593A

    公开(公告)日:1989-06-29

    申请号:JP32499487

    申请日:1987-12-21

    Abstract: NEW MATERIAL:A compound expressed by formula I. USE:A remedy for malignant tumor having low toxicity. PREPARATION:Methoxyethoxymethylcarboxylic acid expressed by formula II is reacted with dihydroxodiaminocyclohexane platinum (II) expressed by formula III, normally under ordinary temperature and ordinary pressure to provide the compound expressed by formula I. Furthermore, the compound expressed by formula III which is a starting raw material can be produced by reacting a compound expressed by the formula K2PtCl4 with a compound expressed by formula IV, reacting the resultant compound expressed by formula V with AgNO3 and treating the resultant compound expressed by formula VI with a OH type anion exchange resin. The compound expressed by formula II can be synthesized from methylcellosolve and monochloroacetic acid using metal sodium.

    PRODUCTION OF D-(-)-TARTARIC ACID
    79.
    发明专利

    公开(公告)号:JPS63245693A

    公开(公告)日:1988-10-12

    申请号:JP7749587

    申请日:1987-04-01

    Abstract: PURPOSE:To industrially and advantageously obtain D-(-)-tartaric acid useful in the field of organic chemistry, by cultivating a specific microorganism in a culture fluid containing DL-tartaric acid. CONSTITUTION:A microorganism, such as Pseudomonas subtilis ATCC17642, belonging to the genus Pseudomonas and having the ability to assimilate L-(+)- tartaric acid without assimilating D-(-)-tartaric acid is inoculated into a culture fluid containing DL-tartaric acid in 1-300g/l concentration and cultivated at 20-35 deg.C for about 30hr by aerating and stirring at 0.5-2VVM aeration flow rate while regulating pH to 7-8. The L-(-)-tartaric acid is then asymmetrically decomposed and wholly consumed by cultivation to centrifuge the culture fluid. Microbial cells are removed to provide a supernatant liquid. CaCl2 is added to the supernatant liquid to form calcium D-(-)-tartrate. H2SO4 is subsequently added to the resultant salt to remove Ca and the obtained aqueous solution of the D-(-)-tartaric acid is then concentrated and purified.

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