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SYNTHESIS OF 26,27-DIALKYL ANALOGS OF 1-ALPHA,25-DIHYDROXYVITAMIN D3
被引:0
|作者:
EGUCHI, T
[1
]
SAI, H
[1
]
TAKATSUTO, S
[1
]
HARA, N
[1
]
IKEKAWA, N
[1
]
机构:
[1] TOKYO INST TECHNOL, DEPT CHEM, TOKYO 152, JAPAN
关键词:
D O I:
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中图分类号:
R914 [药物化学];
学科分类号:
100701 ;
摘要:
1.alpha.,25-Dihydroxy-26,27-dimethylvitamin D3 (5), 1.alpha.,25-dihydroxy-26,27-diethylvitamin D3 (6), 25-hydroxy-26,27-dimethylvitamin D3 (7), and 1.alpha.-hydroxy-26,27-dimethylvitamin D3 (8), as dialkyl analogues of 1.alpha.,25-dihydroxyvitamin D3 (1), were synthesized starting from 3.beta.-hydroxycholenic acid (9). When tested for ability to increase serum calcium concentration in rats, 5 was slightly less active than 1, whereas 6 was much less active. Compound 8 was less active than 1.alpha.-hydroxyvitamin D3. In test for ability to induce cell differentiation of HL-60, 5 was 2.5 times and 6 was 12.5 times more active than 1.
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页码:2303 / 2311
页数:9
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