Kittaka A - Search Results

1

Synthesis and metabolic studies of 1α,2α,25-, 1α,4α,25- and 1α,4β,25-trihydroxyvitamin D3.

Takano M, Sawada D, Yasuda K, Nishikawa M, Takeuchi A, Takagi K, Horie K, Reddy GS, Chen TC, Sakaki T, Kittaka A. Takano M, et al. Among authors: kittaka a. J Steroid Biochem Mol Biol. 2015 Apr;148:34-7. doi: 10.1016/j.jsbmb.2014.09.021. Epub 2014 Sep 26. J Steroid Biochem Mol Biol. 2015. PMID: 25263656 Review.

2

A concise and efficient route to 2alpha-(omega-hydroxyalkoxy)-1alpha,25-dihydroxyvi tam in D3: remarkably high affinity to vitamin D receptor.

Kittaka A, Suhara Y, Takayanagi H, Fujishima T, Kurihara M, Takayama H. Kittaka A, et al. Org Lett. 2000 Aug 24;2(17):2619-22. doi: 10.1021/ol006222j. Org Lett. 2000. PMID: 10990411

3

Synthesis and testing of 2alpha-modified 1alpha,25-dihydroxyvitamin D(3) analogues with a double side chain: marked cell differentiation activity.

Suhara Y, Kittaka A, Kishimoto S, Calverley MJ, Fujishima T, Saito N, Sugiura T, Waku K, Takayama H. Suhara Y, et al. Among authors: kittaka a. Bioorg Med Chem Lett. 2002 Nov 18;12(22):3255-8. doi: 10.1016/s0960-894x(02)00722-9. Bioorg Med Chem Lett. 2002. PMID: 12392726

4

2 alpha-(3-hydroxypropyl)- and 2 alpha-(3-hydroxypropoxy)-1 alpha,25-dihydroxyvitamin D3 accessible to vitamin D receptor mutant related to hereditary vitamin D-resistant rickets.

Kittaka A, Kurihara M, Peleg S, Suhara Y, Takayama H. Kittaka A, et al. Chem Pharm Bull (Tokyo). 2003 Mar;51(3):357-8. doi: 10.1248/cpb.51.357. Chem Pharm Bull (Tokyo). 2003. PMID: 12612432 Free article.

5

Design, synthesis, and biological studies of the A-ring-modified 1,25-dihydroxyvitamin D3 analogs.

Takayama H, Kittaka A, Fujishima T, Suhara Y. Takayama H, et al. Among authors: kittaka a. Recent Results Cancer Res. 2003;164:289-317. doi: 10.1007/978-3-642-55580-0_21. Recent Results Cancer Res. 2003. PMID: 12899530 Review.

6

Design and synthesis of potent vitamin D receptor antagonists with A-ring modifications: remarkable effects of 2alpha-methyl introduction on antagonistic activity.

Fujishima T, Kojima Y, Azumaya I, Kittaka A, Takayama H. Fujishima T, et al. Among authors: kittaka a. Bioorg Med Chem. 2003 Aug 15;11(17):3621-31. doi: 10.1016/s0968-0896(03)00371-7. Bioorg Med Chem. 2003. PMID: 12901907

7

Synthesis of 2,2-dimethyl-1,25-dihydroxyvitamin D3: A-ring structural motif that modulates interactions of vitamin D receptor with transcriptional coactivators.

Fujishima T, Kittaka A, Yamaoka K, Takeyama K, Kato S, Takayama H. Fujishima T, et al. Among authors: kittaka a. Org Biomol Chem. 2003 Jun 7;1(11):1863-9. doi: 10.1039/b302017g. Org Biomol Chem. 2003. PMID: 12945766

8

Efficient synthesis of 2-modified 1alpha,25-dihydroxy-19-norvitamin D3 with Julia olefination: high potency in induction of differentiation on HL-60 cells.

Ono K, Yoshida A, Saito N, Fujishima T, Honzawa S, Suhara Y, Kishimoto S, Sugiura T, Waku K, Takayama H, Kittaka A. Ono K, et al. Among authors: kittaka a. J Org Chem. 2003 Sep 19;68(19):7407-15. doi: 10.1021/jo034787y. J Org Chem. 2003. PMID: 12968893

9

Metabolism of 20-epimer of 1alpha,25-dihydroxyvitamin D3 by CYP24: species-based difference between humans and rats.

Kusudo T, Sakaki T, Abe D, Fujishima T, Kittaka A, Takayama H, Ohta M, Inouye K. Kusudo T, et al. Among authors: kittaka a. Biochem Biophys Res Commun. 2003 Oct 3;309(4):885-92. doi: 10.1016/j.bbrc.2003.08.097. Biochem Biophys Res Commun. 2003. PMID: 13679056

10

Concise synthesis and biological activities of 2alpha-alkyl- and 2alpha-(omega-hydroxyalkyl)-20-epi-1alpha,25-dihydroxyvitamin D3.

Honzawa S, Suhara Y, Nihei K, Saito N, Kishimoto S, Fujishima T, Kurihara M, Sugiura T, Waku K, Takayama H, Kittaka A. Honzawa S, et al. Among authors: kittaka a. Bioorg Med Chem Lett. 2003 Oct 20;13(20):3503-6. doi: 10.1016/s0960-894x(03)00739-x. Bioorg Med Chem Lett. 2003. PMID: 14505658

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