1 ch3. Ch3-Ch(ch3)-Ch(Oh)-ch2-Ch(ch3)-ch3. Ch3 Ch ch3 Ch Oh ch2 Ch ch2 ch3. Ch3-ch2-Ch-Ch-ch3-Oh-ch2-ch3. Ch3-ch2-ch2-ch3=ch3-Ch(ch3)-ch3. Сн3-с(сн3)2-сн2-сн3. Сн3-сн2-сн2-сн2-сн3. Сн2=СН-сн2-сн3. Сн3-(сн2)2-сн2-сн3. Ch3-Ch-c=c-Ch-ch3. Ch3 Ch ch3 Ch ch3 ch3