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关注：1
2013-05-23 12:21
求翻译：优选的，R17为氢、C1-4烷基、异丙基、环丙基或环戊基；是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
优选的，R17为氢、C1-4烷基、异丙基、环丙基或环戊基；
问题补充： |
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2013-05-23 12:21:38
Preferred, R17 is hydrogen, C1-4 alkyl, isopropyl, cyclopropyl or cyclopentyl;
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2013-05-23 12:23:18
Selection of 17 for hydrogen, C R, 1 -4, central alkyl, alkyl (c-E C-based or Central;
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2013-05-23 12:24:58
Optimal, R17 is the hydrogen, the C1-4 alkyl, the isopropyl group, the cyclopropyl or the cyclopentyl;
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2013-05-23 12:26:38
Optimization, R17 into hydrogen, C1-4 alkyl, propyl or Isopropyl, and ring ring Amyl;
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2013-05-23 12:28:18
Preferred, R17, for hydrogen, C1-4 alkyl, different third base, base of the ring third or ring fifth base;
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