Abstract：
:Eldecalcitol [1α,25-dihydroxy-2β-(3-hydroxypropoxy)vitamin D(3)], an analog of calcitriol (1α,25-dihydroxyvitamin D(3)), possesses a hydroxypropoxy substituent at the 2β-position of calcitriol. Eldecalcitol has potent biological effects on bone disease such as osteoporosis. The marketing of eldecalcitol has very recently started in Japan. In consideration of this, we have been investigating practical synthesis of eldecalcitol for industrial-scale production. Eldecalcitol was initially synthesized in a linear manner. The 27-step linear sequence was, however, suboptimal due to its lengthiness and low overall yield (ca. 0.03%). Next, we developed a convergent approach based on the Trost coupling reaction, in which the A-ring fragment (ene-yne part obtained in 10.4% overall yield) and the C/D-ring fragment (bromomethylene part obtained in 27.1% overall yield) are coupled to produce the triene system of eldecalcitol (15.6%). Although the overall yield of the convergent synthesis was better than that of the linear synthesis, significant improvements were still necessary. Therefore, additional biomimetic studies were investigated. Process development for the practical production of eldecalcitol is described herein.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Kubodera N,Hatakeyama Ssubject
Has Abstractpub_date
2012-01-01 00:00:00pages
303-9issue
1eissn
0250-7005issn
1791-7530pii
32/1/303journal_volume
32pub_type
杂志文章abstract：BACKGROUND/AIM:We evaluated the efficacy and safety of carbon-ion radiotherapy (CIRT) alone for Stage III non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS:Data of 65 patients (median age=73 years) with Stage III NSCLC who underwent CIRT alone in the QST Hospital, Chiba, Japan, between 1997 and 2015 were retros...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13963
更新日期：2020-01-01 00:00:00
abstract：AIM:We analyzed pentafecta outcomes [complication-free, continence, potency, negative surgical margins (NSM)], biochemical recurrence (BCR)-free] of 230 patients undergoing robotic-assisted radical prostatectomy (RARP) with bilateral neurovascular (NVB) preservation. PATIENTS AND METHODS:Patient outcomes (group I, cas...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-09-01 00:00:00
abstract：:E-selectin which is expressed on endothelial cells plays an important role in the adhesion of cancer cells to the vascular endothelium, being the ligand for a carbohydrate antigen expressed on cancer cells. In this study, the clinical usefulness of this protein was examined. E-selectin was expressed on the endothelial...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-03-01 00:00:00
abstract：:Several lines of evidence have postulated that reduction in the activity of lipoprotein lipase (LPL) is involved in cachexia induction in cancer patients. Recently we have demonstrated that murine melanoma B16 has the ability to reduce the LPL activity and thereby induce cachexia symptoms in mice following intraperito...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：PURPOSE:To investigate the differences between two rat yolk sac tumor cell lines with different radiosensitivities in etoposide sensitivity and in the sensitizing effect of etoposide in combination with irradiation. MATERIALS AND METHODS:NMT-1 is a parent radiosensitive cell line and NMT-1R is a variant radioresistant...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-07-01 00:00:00
abstract：UNLABELLED:The aim this study was to assess the efficacy of cisplatin-epirubicin-vinorelbine, as primary chemotherapy, in reducing the tumour burden in T2-3 N0-2 breast carcinomas. Breast conservative surgery (BCS) rate, clinical and pathological complete response (pCR), toxicity and 5-year disease-free survival (DFS) ...
journal_title：Anticancer research
pub_type： 杂志文章,多中心研究
doi：
更新日期：2007-07-01 00:00:00
abstract：:Nonterminal cellular differentiation has recently been shown to induce transformed cells to revert to a benign state and to become resistant to retransformation by chemical and physical carcinogens without limiting their proliferative potential. Nonterminal differentiation also induces native 3T3 T mesenchymal stem ce...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1990-09-01 00:00:00
abstract：BACKGROUND/AIM:Vimentin3 (Vim3) was recently described as a tumour marker for the direct discrimination between benign and malignant kidney tumours. Here, we examined its expression in prostate cancer (PCa) cell lines and the regulation of its expression by endothelin receptors. MATERIALS AND METHODS:Prostate cancer c...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14762
更新日期：2021-01-01 00:00:00
abstract：BACKGROUND/AIM:Anthracyclines, such as doxorubicin, though widely used in anticancer therapy, they are associated with cardiotoxic side-effects. The aim of this trial was to investigate long-term follow-up cardiotoxicity findings in patients treated with doxorubicin and concomitant metoprolol or enalapril 10 years earl...
journal_title：Anticancer research
pub_type： 杂志文章,随机对照试验
doi：10.21873/anticanres.13769
更新日期：2019-10-01 00:00:00
abstract：:Combination therapies are used in the clinic to achieve cure, better efficacy and to circumvent resistant disease in patients. Initial assessment of the effect of such combinations, usually of two agents, is frequently performed using in vitro assays. In this review, we give a short summary of the types of analyses th...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：10.21873/anticanres.13472
更新日期：2019-07-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-11-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-03-01 00:00:00
abstract：:The technical performance and clinical usefulness of the newly developed Elecsys CA 125 II assay (Boehringer Mannheim) was evaluated in a multicenter study. Imprecision studies were carried out using control sera and human pool sera with CA 125 concentrations from 11 to 1026 U/ml. Within-run CVs between 0.7 to 4.8% (m...
journal_title：Anticancer research
pub_type： 杂志文章,多中心研究
doi：
更新日期：1999-07-01 00:00:00
abstract：BACKGROUND/AIM:To develop a tool for estimating the risk of developing new cerebral lesions in 69 melanoma patients receiving radiosurgery for 1-3 cerebral metastases. PATIENTS AND METHODS:Ten factors were investigated: lactate dehydrogenase (LDH), radiosurgery dose, age, gender, performance status, maximum diameter, ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-10-01 00:00:00
abstract：:The antineoplastic drug 4'-iodo-4'-deoxydoxorubicin (IDX), a new halogenated anthracycline (1), was examined as a differentiation inducing agent on the human neuroblastoma cell lines TS12 and SK-N-MC. IDX induced morphological and biochemical differentiation and growth inhibition. The effect of a combined treatment of...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1991-09-01 00:00:00
abstract：:Development and progression of tumours is generally driven by an accumulation of genetic alterations. In this study we correlated chromosome 17 aneuploidy to invasiveness of bladder cancer by the method of fluorescence in situ hybridisation (FISH) in urinary cytospins. We investigated the value of FISH compared to DNA...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-11-01 00:00:00
abstract：:Hyperthermia is effective for the treatment of cancer when applied concomitantly with chemotherapy and irradiation. However, it is difficult to heat deep portions of the body including the esophagus. Cancer of the esophagus still poses considerable treatment problems, with a poor 5-year survival rate after surgery, an...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章,评审
doi：
更新日期：1992-05-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-11-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-05-01 00:00:00
abstract：BACKGROUND:Laparoscopic pelvic lymph node staging is widely used in patients with cervical cancer prior to the initiation of primary chemoradiation therapy. Data on the morbidity of this procedure are sparse. PATIENTS AND METHODS:Between 1995 and 2007, 71 patients with locally advanced cervical cancer (FIGO stage IB2-...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-05-01 00:00:00
abstract：:The role of intensive pre- and postoperative chemotherapy in unresectable nonmetastatic neuroblastoma is still controversial. A preoperative regimen that included deferoxamine, cyclophosphamide, etoposide, carboplatin and thiotepa (D-CECaT) was evaluated in 10 children over one year of age at diagnosis, and this was f...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1995-09-01 00:00:00
abstract：:Despite progress in chemotherapeutic agents, non-small cell lung cancers (NSCLC) still have a poor survival rate. Thus, development of new therapeutic strategies, specifically against cancer cells is still required. For this purpose, we treated the non-small cell lung cancer cell line NSCLC-N6 with the natural product...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-09-01 00:00:00
abstract：:The emergence of molecular and cytogenetic correlates has opened exciting avenues to a better understanding of acute lymphocytic leukemia (ALL) and in turn has sharpened the clinician's ability for classification and treatment. While the pathophysiology and etiology of ALL remains vague, the clinical significance of t...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：1990-03-01 00:00:00
abstract：BACKGROUND:Calpains (CAPN) are intracellular, non-lysosomal cytoplasmic cysteine endopeptidases and they are expressed ubiquitously. Their endogenous specific inhibitor is calpastatin. When calcium is present, calpastatin and calpain attach to each other, inhibiting the protease. The calpain system plays an important r...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-07-01 00:00:00
abstract：BACKGROUND/AIM:Few data are available on the utility of definitive radiation therapy (RT) for pediatric craniopharyngioma. This study sought to evaluate practice patterns and patient outcomes using the Surveillance Epidemiology and End Results database from 2004-2014. MATERIALS AND METHODS:Overall survival (OS) was co...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13178
更新日期：2019-02-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：10.21873/anticanres.11592
更新日期：2017-05-01 00:00:00
abstract：:An immunohistochemical study of 155 squamous cell carcinomas of the oesophagus, squamous epithelium adjacent to the tumour (n = 80), dysplastic epithelium (n = 16) and controls (n = 23) indicates that Ki67 and p53 expression is frequently present in premalignant oesophageal lesions and their related squamous cell carc...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:p63 expression was evaluated in a tissue microarray of prostate tissues including benign glands, prostatic intraepithelial neoplasia and prostatic carcinoma. Immunostaining with anti-p63 antibody was restricted to basal cell nuclei. Detectable p63 was found in immortalized and early passage cell cultures, but not in s...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-11-01 00:00:00
