申请人:Daicel Chemical Industries, Ltd.
公开号:US05750717A1
公开(公告)日:1998-05-12
The present invention provides useful intermediates for the synthesis of 2,5-diamino-1,6-diphenyl-3-hydroxyhexane derivatives which serve as intermediates in the synthesis of medicines such as retrovirus protease inhibitors including human immunodeficiency virus (HIV) protease inhibitors, and a method for preparing these intermediates using the former intermediates. More particularly, the invention provides methods for preparing a 2-isoxazoline derivative represented by formula \x9b1! and a 2,5-diamino-1,6-diphenyl-3-hydroxyhexane derivative obtainable by reducing the 2-isoxazoline derivative and represented by formula \x9b6!: ##STR1## (wherein Ph is phenyl; and each of R.sup.1 and R.sup.2 independently represents hydrogen, acyl, alkyloxycarbonyl, arylalkyloxycarbonyl, aryloxycarbonyl, alkylaminocarbonyl, arylalkylaminocarbonyl, arylaminocarbonyl, alkyl, arylalkyl, aryl, alkylsulfonyl, arylalkylsulfonyl, or arylsulfonyl, or R.sup.1 and R.sup.2 are linked to each other to represent divalent acyl).
本发明提供了用于合成2,5-二氨基-1,6-二苯基-3-羟基己烷衍生物的有用中间体,该衍生物用作合成药物的中间体,例如逆转录病毒蛋白酶抑制剂,包括人类免疫缺陷病毒(HIV)蛋白酶抑制剂,以及使用前述中间体制备这些中间体的方法。更具体地,该发明提供了制备由公式\x9b1!表示的2-异噁唑啉衍生物和通过还原2-异噁唑啉衍生物得到的由公式\x9b6!表示的2,5-二氨基-1,6-二苯基-3-羟基己烷衍生物的方法:##STR1##(其中Ph为苯基;R.sup.1和R.sup.2中的每一个独立表示氢、酰基、烷氧羰基、芳基烷氧羰基、芳氧羰基、烷基氨基羰基、芳基烷基氨基羰基、芳基氨基羰基、烷基、芳基烷基、芳基、烷基磺酰基、芳基烷基磺酰基或芳基磺酰基,或R.sup.1和R.sup.2相连以表示二价酰基)。