【発明の名称】ステロイド-β-O-セロビオシドヘプタアルカノエートの製造方法

Title:

【発明の名称】ステロイド-β-O-セロビオシドヘプタアルカノエートの製造方法

Document Type and Number:

Japanese Patent JP2578399

Kind Code:

B2

Abstract:

PCT No. PCT/US93/01709 Sec. 371 Date Dec. 20, 1994 Sec. 102(e) Date Dec. 20, 1994 PCT Filed Mar. 2, 1993 PCT Pub. No. WO94/00478 PCT Pub. Date Jan. 6, 1994A process for the synthesis of peracyl-1-O-steroidal- beta -cellobiosides that provides excellent beta -anomeric selectivity without the use of a metal salt promoter. The process comprises reacting heptaacyl- beta -D-cellobiosyl-1-fluoride and a trisubstituted silyl-3-O-steroid, wherein the steroid is tigogenin, hecogenin, 11-ketotigogenin or diosgenin in the absence of a metal salt under suitable conditions.

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Inventors:

GOTSUGIN KYASURIIN DAIAN
RANBAATO JON FURANSHISU
UORINSUKII SUTANREE UORUTAA

Application Number:

JP50231594A

Publication Date:

February 05, 1997

Filing Date:

March 02, 1993

Export Citation:

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Assignee:

PFIZER

International Classes:

C07J71/00; C07J75/00; (IPC1-7): C07J75/00; C07J71/00

Attorney, Agent or Firm:

Hiroshi Kobayashi

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